1.  mass(n = noun.attribute) - the property of a body that causes it to have weight in a gravitational field;
is a kind of physical property, fundamental measure, fundamental quantity
has particulars: body, biomass, critical mass, rest mass, relativistic mass, bulk, gravitational mass, inertial mass, atomic mass, atomic weight, relative atomic mass, mass energy, molecular weight, relative molecular mass, mass defect, mass deficiency

2.  mass(n = noun.quantity) batch, deal, flock, good deal, great deal, hatful, heap, lot, mess, mickle, mint, mountain, muckle, passel, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad - (often followed by `of') a large number or amount or extent; "a batch of letters"; "a deal of trouble"; "a lot of money"; "he made a mint on the stock market"; "see the rest of the winners in our huge passel of photos"; "it must have cost plenty"; "a slew of journalists"; "a wad of money"
is a kind of large indefinite amount, large indefinite quantity
has particulars: deluge, flood, inundation, torrent, haymow

3.  mass(n = noun.group) - an ill-structured collection of similar things (objects or people);
is a kind of accumulation, aggregation, assemblage, collection
has particulars: logjam, shock
Derived form verb mass₁

4.  mass(n = noun.act) - (Roman Catholic Church and Protestant Churches) the celebration of the Eucharist;
is a kind of religious ceremony, religious ritual
has particulars: high mass, low mass, requiem

5.  mass(n = noun.object) - a body of matter without definite shape; "a huge ice mass"
is a kind of body
has particulars: coprolith, faecalith, fecalith, stercolith, drift, mat, mush, pulp

6.  mass(n = noun.group) hoi polloi, masses, multitude, people, the great unwashed - the common people generally; "separate the warriors from the mass"; "power to the people"
is a kind of group, grouping
has particulars: laity, temporalty, audience, followers, following

7.  mass(n = noun.attribute) bulk, volume - the property of something that is great in magnitude; "it is cheaper to buy it in bulk"; "he received a mass of correspondence"; "the volume of exports"
is a kind of magnitude
has particulars: dollar volume, turnover

8.  mass(n = noun.communication) - a musical setting for a Mass; "they played a Mass composed by Beethoven"
is a kind of church music, religious music
is a part of high mass
has particulars: requiem

9.  mass(n = noun.communication) - a sequence of prayers constituting the Christian Eucharistic rite; "the priest said Mass"
is a kind of prayer

   mass(v = verb.motion) - join together into a mass or collect or form a mass; "Crowds were massing outside the palace"
is one way to crowd, crowd together
Derived form noun mass₃
Sample sentences: The crowds mass in the streets

   mass(s = adj.all) aggregate, aggregated, aggregative - formed of separate units gathered into a mass or whole; "aggregate expenses include expenses of all divisions combined for the entire year"; "the aggregated amount of indebtedness"

1.  The sacrifice in the sacrament of the Eucharist, or the consecration and oblation of the host. [1913 Webster]

2.  The portions of the Mass usually set to music, considered as a musical composition; -- namely, the Kyrie, the Gloria, the Credo, the Sanctus, and the Agnus Dei, besides sometimes an Offertory and the Benedictus. [1913 Webster]

   To celebrate Mass. Hooker. [1913 Webster]

1.  A quantity of matter cohering together so as to make one body, or an aggregation of particles or things which collectively make one body or quantity, usually of considerable size; as, a mass of ore, metal, sand, or water. [1913 Webster]
"If it were not for these principles, the bodies of the earth, planets, comets, sun, and all things in them, would grow cold and freeze, and become inactive masses." [1913 Webster]
"A deep mass of continual sea is slower stirred
To rage." [1913 Webster]

2.  A medicinal substance made into a cohesive, homogeneous lump, of consistency suitable for making pills; as, blue mass. [1913 Webster]

3.  A large quantity; a sum. [1913 Webster]
"All the mass of gold that comes into Spain." [1913 Webster]
"He had spent a huge mass of treasure." [1913 Webster]

4.  Bulk; magnitude; body; size. [1913 Webster]
"This army of such mass and charge." [1913 Webster]

5.  The principal part; the main body. [1913 Webster]
"Night closed upon the pursuit, and aided the mass of the fugitives in their escape." [1913 Webster]

6.  The quantity of matter which a body contains, irrespective of its bulk or volume. [1913 Webster]
" Mass and weight are often used, in a general way, as interchangeable terms, since the weight of a body is proportional to its mass (under the same or equal gravitative forces), and the mass is usually ascertained from the weight. Yet the two ideas, mass and weight, are quite distinct. Mass is the quantity of matter in a body; weight is the comparative force with which it tends towards the center of the earth. A mass of sugar and a mass of lead are assumed to be equal when they show an equal weight by balancing each other in the scales." [1913 Webster]

   To form or collect into a mass; to form into a collective body; to bring together into masses; to assemble. [1913 Webster]
"But mass them together and they are terrible indeed." [1913 Webster]

mass, n., v., & adj.
--n.
1 a coherent body of matter of indefinite shape.
2 a dense aggregation of objects (a mass of fibres).
3 (in sing. or pl.; foll. by of) a large number or amount.
4 (usu. foll. by of) an unbroken expanse (of colour etc.).
5 (foll. by of) covered or abounding in (was a mass of cuts and bruises).
6 a main portion (of a painting etc.) as perceived by the eye.
7 (prec. by the) a the majority. b (in pl.) the ordinary people.
8 Physics the quantity of matter a body contains.
9 (attrib.) relating to, done by, or affecting large numbers of people or things; large-scale (mass audience; mass action; mass murder).
--v.tr. & intr.
1 assemble into a mass or as one body (massed bands).
2 Mil. (with ref. to troops) concentrate or be concentrated.

Idiom:
centre of mass a point representing the mean position of matter in a body or system. in the mass in the aggregate. law of mass action the principle that the rate of a chemical reaction is proportional to the masses of the reacting substances. mass defect the difference between the mass of an isotope and its mass number. mass energy a body's ability to do work according to its mass. mass media = MEDIA(1) 2. mass noun Gram. a noun that is not countable and cannot be used with the indefinite article or in the plural (e.g. bread). mass number the total number of protons and neutrons in a nucleus. mass observation Brit. the study and recording of the social habits and opinions of ordinary people. mass-produce produce by mass production. mass production the production of large quantities of a standardized article by a standardized mechanical process. mass spectrograph an apparatus separating isotopes, molecules, and molecular fragments according to mass by their passage in ionic form through electric and magnetic fields. mass spectrometer a device similar to a mass spectrograph but employing electrical detection. mass spectrum the distribution of ions shown by the use of a mass spectrograph or mass spectrometer.

Derivative:
massless adj.

mass, n. (often Mass)
1 the Eucharist, esp. in the Roman Catholic Church.
2 a celebration of this.
3 the liturgy used in the mass.
4 a musical setting of parts of this.

Idiom:
high mass mass with incense, music, and usu. the assistance of a deacon and subdeacon. low mass mass with no music and a minimum of ceremony.

Etymology:
OE m{aelig}sse f. eccl.L missa f. L mittere miss- dismiss, perh. f. the concluding dismissal Ite, missa est Go, it is the dismissal

N  quantity, magnitude, size, amplitude, magnitude, mass, amount, sum, quantum, measure, substance, strength, force, mathematics, mathesis, category, general conception, universal predicament, armful, handful, mouthful, spoonful, capful, stock, batch, lot, dose, yaffle, quantitative, some, any, aught, more or less, a few, to the tune of, all of, a full, the sum of, fully, exactly, precisely.

N  greatness, magnitude, size, multitude, immensity, enormity, infinity, might, strength, intensity, fullness, importance, great quantity, quantity, deal, power, sight, pot, volume, world, mass, heap, stock, peck, bushel, load, cargo, cartload, wagonload, shipload, flood, spring tide, abundance, principal part, chief part, main part, greater part, major part, best part, essential part, bulk, mass, great, greater, large, considerable, fair, above par, big, huge, Herculean, cyclopean, ample, abundant, full, intense, strong, sound, passing, heavy, plenary, deep, high, signal, at its height, in the zenith, world-wide, widespread, far-famed, extensive, wholesale, many, goodly, noble, precious, mighty, sad, grave, heavy, serious, far gone, arrant, downright, utter, uttermost, crass, gross, arch, profound, intense, consummate, rank, uninitiated, red-hot, desperate, glaring, flagrant, stark staring, thorough-paced, thoroughgoing, roaring, thumping, extraordinary, important, unsurpassed, complete, august, grand, dignified, sublime, majestic, vast, immense, enormous, extreme, inordinate, excessive, extravagant, exorbitant, outrageous, preposterous, unconscionable, swinging, monstrous, overgrown, towering, stupendous, prodigious, astonishing, incredible, marvelous, unlimited, unapproachable, unutterable, indescribable, ineffable, unspeakable, inexpressible, beyond expression, fabulous, undiminished, unabated, unreduced, unrestricted, absolute, positive, stark, decided, unequivocal, essential, perfect, finished, remarkable, of mark, marked, pointed, veriest, noteworthy, renowned, truly, decidedly, unequivocally, purely, absolutely, seriously, essentially, fundamentally, radically, downright, in all conscience, for the most part, in the main, entirely, abundantly, widely, far and wide, greatly, much, muckle, well, indeed, very, very much, a deal, no end of, most, not a little, pretty, pretty well, enough, in a great measure, richly, to a large extent, to a great extent, to a gigantic extent, on a large scale, so, never so, ever so, ever so dole, scrap, shred, tag, splinter, rag, much, by wholesale, mighty, powerfully, with a witness, ultra, in the extreme, extremely, exceedingly, intensely, exquisitely, acutely, indefinitely, immeasurably, beyond compare, beyond comparison, beyond measure, beyond all bounds, incalculably, infinitely, preeminently, superlatively, immoderately, monstrously, preposterously, inordinately, exorbitantly, excessively, enormously, out of all proportion, with a vengeance, particularly, remarkably, singularly, curiously, uncommonly, unusually, peculiarly, notably, signally, strikingly, pointedly, mainly, chiefly, famously, egregiously, prominently, glaringly, emphatically, kat exochin, strangely, wonderfully, amazingly, surprisingly, astonishingly, incredibly, marvelously, awfully, stupendously, peculiarly, furiously, severely, desperately, tremendously, extravagantly, confoundedly, deucedly, devilishly, with a vengeance, a outrance, a toute outrance, painfully, sadly, grossly, sorely, bitterly, piteously, grievously, miserably, cruelly, woefully, lamentably, shockingly, frightfully, dreadfully, fearfully, terribly, horribly, a maximis ad minima, greatness knows itself, mightiest powers by deepest calms are fed, minimum decet libere cui multum licet, some are born great, some achieve greatness, and some have greatness thrust upon them, greatness, magnitude, size, multitude, immensity, enormity, infinity, might, strength, intensity, fullness, importance, great quantity, quantity, deal, power, sight, pot, volume, world, mass, heap, stock, peck, bushel, load, cargo, cartload, wagonload, shipload, flood, spring tide, abundance, principal part, chief part, main part, greater part, major part, best part, essential part, bulk, mass, great, greater, large, considerable, fair, above par, big, huge, Herculean, cyclopean, ample, abundant, full, intense, strong, sound, passing, heavy, plenary, deep, high, signal, at its height, in the zenith, world-wide, widespread, far-famed, extensive, wholesale, many, goodly, noble, precious, mighty, sad, grave, heavy, serious, far gone, arrant, downright, utter, uttermost, crass, gross, arch, profound, intense, consummate, rank, uninitiated, red-hot, desperate, glaring, flagrant, stark staring, thorough-paced, thoroughgoing, roaring, thumping, extraordinary, important, unsurpassed, complete, august, grand, dignified, sublime, majestic, vast, immense, enormous, extreme, inordinate, excessive, extravagant, exorbitant, outrageous, preposterous, unconscionable, swinging, monstrous, overgrown, towering, stupendous, prodigious, astonishing, incredible, marvelous, unlimited, unapproachable, unutterable, indescribable, ineffable, unspeakable, inexpressible, beyond expression, fabulous, undiminished, unabated, unreduced, unrestricted, absolute, positive, stark, decided, unequivocal, essential, perfect, finished, remarkable, of mark, marked, pointed, veriest, noteworthy, renowned, truly, decidedly, unequivocally, purely, absolutely, seriously, essentially, fundamentally, radically, downright, in all conscience, for the most part, in the main, entirely, abundantly, widely, far and wide, greatly, much, muckle, well, indeed, very, very much, a deal, no end of, most, not a little, pretty, pretty well, enough, in a great measure, richly, to a large extent, to a great extent, to a gigantic extent, on a large scale, so, never so, ever so, ever so dole, scrap, shred, tag, splinter, rag, much, by wholesale, mighty, powerfully, with a witness, ultra, in the extreme, extremely, exceedingly, intensely, exquisitely, acutely, indefinitely, immeasurably, beyond compare, beyond comparison, beyond measure, beyond all bounds, incalculably, infinitely, preeminently, superlatively, immoderately, monstrously, preposterously, inordinately, exorbitantly, excessively, enormously, out of all proportion, with a vengeance, particularly, remarkably, singularly, curiously, uncommonly, unusually, peculiarly, notably, signally, strikingly, pointedly, mainly, chiefly, famously, egregiously, prominently, glaringly, emphatically, kat exochin, strangely, wonderfully, amazingly, surprisingly, astonishingly, incredibly, marvelously, awfully, stupendously, peculiarly, furiously, severely, desperately, tremendously, extravagantly, confoundedly, deucedly, devilishly, with a vengeance, a outrance, a toute outrance, painfully, sadly, grossly, sorely, bitterly, piteously, grievously, miserably, cruelly, woefully, lamentably, shockingly, frightfully, dreadfully, fearfully, terribly, horribly, a maximis ad minima, greatness knows itself, mightiest powers by deepest calms are fed, minimum decet libere cui multum licet, some are born great, some achieve greatness, and some have greatness thrust upon them.

N  whole, totality, integrity, totalness, entirety, ensemble, collectiveness, unity, completeness, indivisibility, indiscerptibility, integration, embodiment, integer, all, the whole, total, aggregate, one and all, gross amount, sum, sum total, tout ensemble, length and breadth of, Alpha and Omega, be all and end all, complex, complexus, lock stock and barrel, bulk, mass, lump, tissue, staple, body, compages, trunk, torso, bole, hull, hulk, skeleton greater part, major part, best part, principal part, main part, essential part, lion's share, Benjamin's mess, the long and the short, nearly, all, almost all, whole, total, integral, entire, complete, one, individual, unbroken, intact, uncut, undivided, unsevered, unclipped, uncropped, unshorn, seamless, undiminished, undemolished, undissolved, undestroyed, unbruised, indivisible, indissoluble, indissolvable, indiscerptible, wholesale, sweeping, comprehensive, wholly, altogether, totally, entirely, all, all in all, as a whole, wholesale, in a body, collectively, all put together, in the aggregate, in the lump, in the mass, in the gross, in the main, in the long run, en masse, as a body, on the whole, bodily, en bloc, in extenso, throughout, every inch, substantially, tout bien ou rien.

N  assemblage, collection, collocation, colligation, compilation, levy, gathering, ingathering, muster, attroupement, team, concourse, conflux, congregation, contesseration, convergence, meeting, levee, reunion, drawing room, at home, conversazione, assembly, congress, convention, conventicle, gemote, conclave, posse, posse comitatus, Noah's ark, miscellany, collectanea, museum, menagerie, museology, crowd, throng, group, flood, rush, deluge, rabble, mob, press, crush, cohue, horde, body, tribe, crew, gang, knot, squad, band, party, swarm, shoal, school, covey, flock, herd, drove, atajo, bunch, drive, force, mulada, remuda, roundup, array, bevy, galaxy, corps, company, troop, troupe, task force, army, regiment, host, populousness, clan, brotherhood, fraternity, sorority, association, volley, shower, storm, cloud, group, cluster, Pleiades, clump, pencil, set, batch, lot, pack, budget, assortment, bunch, parcel, packet, package, bundle, fascine, fasces, bale, seron, seroon, fagot, wisp, truss, tuft, shock, rick, fardel, stack, sheaf, haycock, fascicle, fascicule, fasciculus, gavel, hattock, stook, accumulation, congeries, heap, lump, pile, rouleau, tissue, mass, pyramid, bing, drift, snowball, snowdrift, acervation, cumulation, glomeration, agglomeration, conglobation, conglomeration, conglomerate, coacervate, coacervation, coagmentation, aggregation, concentration, congestion, omnium gaterum, spicilegium, black hole of Calcutta, quantity, collector, gatherer, whip, whipper in, assembled, closely packed, dense, serried, crowded to suffocation, teeming, swarming, populous, as thick as hops, all of a heap, fasciculated cumulative, the plot thickens, acervatim, tibi seris tibi metis.

VB  assemble, collect, muster, meet, unite, join, rejoin, cluster, flock, swarm, surge, stream, herd, crowd, throng, associate, congregate, conglomerate, concentrate, precipitate, center round, rendezvous, resort, come together, flock get together, pig together, forgather, huddle, reassemble, assemble, muster, bring together, get together, put together, draw together, scrape together, lump together, collect, collocate, colligate, get, whip in, gather, hold a meeting, convene, convoke, convocate, rake up, dredge, heap, mass, pile, pack, put up, truss, cram, acervate, agglomerate, aggregate, compile, group, aggroup, concentrate, unite, collect into a focus, bring into a focus, amass, accumulate, collect in a dragnet, heap Ossa upon Pelion.

N  worship, adoration, devotion, aspiration, homage, service, humiliation, kneeling, genuflection, prostration, prayer, invocation, supplication, rogation, intercession, orison, holy breathing, petition, collect, litany, Lord's prayer, paternoster, beadroll, latria, dulia, hyperdulia, vigils, revival, cult, anxious meeting, camp meeting, ebenezer, virginal, thanksgiving, giving thanks, returning thanks, grace, praise, glorification, benediction, doxology, hosanna, hallelujah, allelujah, Te Deum, non nobis Domine, nunc dimittis, paean, benschen, Ave Maria, O Salutaris, Sanctus, The Annunciation, Tersanctus, Trisagion, psalm, psalmody, hymn, plain song, chant, chaunt, response, anthem, motet, antiphon, antiphony, oblation, sacrifice, incense, libation, burnt offering, heave offering, votive offering, offertory, discipline, self-discipline, self-examination, self-denial, fasting, divine service, office, duty, exercises, morning prayer, mass, matins, evensong, vespers, undernsong, tierce, holyday, worshipper, congregation, communicant, celebrant, worshipping, devout, devotional, reverent, pure, solemn, fervid, Int, hallelujah, allelujah!, hosanna!, glory be to God!, O Lord!, pray God that!, God grant, God bless, God save, God forbid!, sursum corda, making their lives a prayer, ora et labora, prayers ardent open heaven.

N  rite, ceremony, ritual, liturgy, ceremonial, ordinance, observance, function, duty, form, formulary, solemnity, sacrament, incantation, service, psalmody, ministration, preaching, preachment, predication, sermon, homily, lecture, discourse, pastoral, baptism, christening, chrism, circumcision, baptismal regeneration, font, confirmation, imposition of hands, laying on of hands, ordination, excommunication, Bar Mitzvah, Bas Mitzvah, Bris, Eucharist, Lord's supper, communion, the sacrament, the holy sacrament, celebration, high celebration, missa cantata, asperges, offertory, introit, consecration, consubstantiation, transubstantiation, real presence, elements, mass, high mass, low mass, dry mass, matrimony, burial, visitation of the sick, seven sacraments, impanation, subpanation, extreme unction, viaticum, invocation of saints, canonization, transfiguration, auricular confession, maceration, flagellation, sackcloth and ashes, penance, telling of beads, processional, thurification, incense, holy water, aspersion, relics, rosary, beads, reliquary, host, cross, rood, crucifix, pax, pyx, agnus Dei, censer, thurible, patera, eileton, Holy Grail, prayer machine, prayer wheel, Sangraal, urceus, ritualism, ceremonialism, sabbatism, sabbatarianism, ritualist, sabbatarian, holyday, feast, fast, Sabbath, Pentecost, Advent, Christmas, Epiphany, Lent, Passion week, Holy week, Easter, Easter Sunday, Whitsuntide, agape, Ascension Day, Candlemas, Ash Wednesday, Good Friday, Holy Thursday, Lammas, Martinmas, Michaelmas, All SAint's DAy, All Souls' Day, Ramadan, Ramazan, Bairam Passover, Shabuoth, Yom Kippur, Day of Atonement, Rosh Hashana, New Year, Hanukkah, Chanukkah, Feast of Lights, Purim, Feast of lots, ritual, ritualistic, ceremonial, baptismal, eucharistical, paschal, what art thou, thou idol ceremony?.

N  size, magnitude, dimension, bulk, volume, largeness, greatness, expanse, amplitude, mass, proportions, capacity, tonnage, tunnage, cordage, caliber, scantling, turgidity, corpulence, obesity, plumpness, embonpoint, corporation, flesh and blood, lustihood, hugeness, enormity, immensity, monstrosity, giant, Brobdingnagian, Antaeus, Goliath, Gog and Magog, Gargantua, monster, mammoth, Cyclops, cachalot, whale, porpoise, behemoth, leviathan, elephant, hippopotamus, colossus, tun, cord, lump, bulk, block, loaf, mass, swad, clod, nugget, bushel, thumper, whooper, spanker, strapper, Triton among the minnows, mountain, mound, heap, largest portion, full size, life size, large, big, great, considerable, bulky, voluminous, ample, massive, massy, capacious, comprehensive, spacious, mighty, towering, fine, magnificent, corpulent, stout, fat, obese, plump, squab, full, lusty, strapping, bouncing, portly, burly, well-fed, full-grown, corn fed, gram fed, stalwart, brawny, fleshy, goodly, in good case, in good condition, in condition, chopping, jolly, chub faced, chubby faced, lubberly, hulky, unwieldy, lumpish, gaunt, spanking, whacking, whopping, walloping, thumping, thundering, hulking, overgrown, puffy, huge, immense, enormous, mighty, vast, vasty, amplitudinous, stupendous, monster, monstrous, humongous, monumental, elephantine, jumbo, mammoth, gigantic, gigantean, giant, giant like, titanic, prodigious, colossal, Cyclopean, Brobdingnagian, Bunyanesque, Herculean, Gargantuan, infinite, large as life, plump as a dumpling, plump as a partridge, fat as a pig, fat as a quail, fat as butter, fat as brawn, fat as bacon, immeasurable, unfathomable, unplumbed, inconceivable, unimaginable, unheard-of, of cosmic proportions, of epic proportions, the mother of all, teh granddaddy of all, size, magnitude, dimension, bulk, volume, largeness, greatness, expanse, amplitude, mass, proportions, capacity, tonnage, tunnage, cordage, caliber, scantling, turgidity, corpulence, obesity, plumpness, embonpoint, corporation, flesh and blood, lustihood, hugeness, enormity, immensity, monstrosity, giant, Brobdingnagian, Antaeus, Goliath, Gog and Magog, Gargantua, monster, mammoth, Cyclops, cachalot, whale, porpoise, behemoth, leviathan, elephant, hippopotamus, colossus, tun, cord, lump, bulk, block, loaf, mass, swad, clod, nugget, bushel, thumper, whooper, spanker, strapper, Triton among the minnows, mountain, mound, heap, largest portion, full size, life size, large, big, great, considerable, bulky, voluminous, ample, massive, massy, capacious, comprehensive, spacious, mighty, towering, fine, magnificent, corpulent, stout, fat, obese, plump, squab, full, lusty, strapping, bouncing, portly, burly, well-fed, full-grown, corn fed, gram fed, stalwart, brawny, fleshy, goodly, in good case, in good condition, in condition, chopping, jolly, chub faced, chubby faced, lubberly, hulky, unwieldy, lumpish, gaunt, spanking, whacking, whopping, walloping, thumping, thundering, hulking, overgrown, puffy, huge, immense, enormous, mighty, vast, vasty, amplitudinous, stupendous, monster, monstrous, humongous, monumental, elephantine, jumbo, mammoth, gigantic, gigantean, giant, giant like, titanic, prodigious, colossal, Cyclopean, Brobdingnagian, Bunyanesque, Herculean, Gargantuan, infinite, large as life, plump as a dumpling, plump as a partridge, fat as a pig, fat as a quail, fat as butter, fat as brawn, fat as bacon, immeasurable, unfathomable, unplumbed, inconceivable, unimaginable, unheard-of, of cosmic proportions, of epic proportions, the mother of all, teh granddaddy of all.

N  density, solidity, solidness, impenetrability, impermeability, incompressibility, imporosity, cohesion, constipation, consistence, spissitude, specific gravity, hydrometer, areometer, condensation, caseation, solidation, solidification, consolidation, concretion, coagulation, petrification, crystallization, precipitation, deposit, precipitate, inspissation, gelation, thickening, indivisibility, indiscerptibility, insolubility, indissolvableness, solid body, mass, block, knot, lump, concretion, concrete, conglomerate, cake, clot, stone, curd, coagulum, bone, gristle, cartilage, casein, crassamentum, legumin, superdense matter, condensed states of matter, dwarf star, neutron star, dense, solid, solidified, caseous, pukka, coherent, cohesive, compact, close, serried, thickset, substantial, massive, lumpish, impenetrable, impermeable, nonporous, imporous, incompressible, constipated, concrete, knotted, knotty, gnarled, crystalline, crystallizable, thick, grumous, stuffy, undissolved, unmelted, unliquefied, unthawed, indivisible, indiscerptible, infrangible, indissolvable, indissoluble, insoluble, infusible.

air mass, atomic mass, atomic mass unit, black mass, center of mass, centre of mass, conservation of mass, critical mass, gravitational mass, high mass, ice mass, inertial mass, law of conservation of mass, law of mass action, low mass, mass action, mass card, mass culture, mass defect, mass deficiency, mass energy, mass hysteria, mass medium, mass meeting, mass murder, mass murderer, mass noun, mass number, mass production, mass rapid transit, mass spectrograph, mass spectrometer, mass spectrometry, mass spectroscopic, mass spectroscopy, mass spectrum, mass unit, relative atomic mass, relative molecular mass, relativistic mass, relativistic mass equation, rest mass, weapon of mass destruction