1.  jam(n = noun.food) - preserve of crushed fruit;
is a kind of conserve, conserves, preserve, preserves
has particulars: strawberry jam, strawberry preserves

2.  jam(n = noun.state) fix, hole, kettle of fish, mess, muddle, pickle - informal terms for a difficult situation; "he got into a terrible fix"; "he made a muddle of his marriage"
is a kind of difficulty
has particulars: dog's breakfast, dog's dinner

3.  jam(n = noun.group) crush, press - a dense crowd of people;
is a kind of crowd
has particulars: snarl-up, traffic jam
Derived form verb jam₆

4.  jam(n = noun.act) electronic jamming, jamming - deliberate radiation or reflection of electromagnetic energy for the purpose of disrupting enemy use of electronic devices or systems;
is a kind of ecm, electronic countermeasures
has particulars: barrage jamming, selective jamming, spot jamming
Derived form verb jam₄

1.  jam(v = verb.motion) mob, pack, pile, throng - press tightly together or cram; "The crowd packed the auditorium"
is one way to crowd, crowd together
Sample sentences: Somebody ----s PP

2.  jam(v = verb.motion) - push down forcibly; "The driver jammed the brake pedal to the floor"
is one way to force, push
Sample sentences: Somebody ----s something; Something ----s something

3.  jam(v = verb.contact) crush - crush or bruise; "jam a toe"
is one way to bruise, contuse
Sample sentences: Did he jam his foot?

4.  jam(v = verb.communication) block - interfere with or prevent the reception of signals; "Jam the Voice of America"; "block the signals emitted by this station"
is one way to break up, cut off, disrupt, interrupt
Derived forms noun jam₄, noun jamming₁
Sample sentences: Somebody ----s something; Something ----s something

5.  jam(v = verb.contact) - get stuck and immobilized; "the mechanism jammed"
is one way to malfunction, misfunction
Sample sentences: They want to jam the doors

6.  jam(v = verb.contact) chock up, cram, jampack, ram, wad - crowd or pack to capacity; "the theater was jampacked"
is one way to stuff
Derived form noun jam₃
Sample sentences: They jam the books into the box

7.  jam(v = verb.contact) block, close up, impede, obstruct, obturate, occlude - block passage through; "obstruct the path"
is one way to hinder, impede
Sample sentences: Somebody ----s something; Something ----s something

   A kind of frock for children. [1913 Webster]

   See Jamb. [1913 Webster]

1.  To press into a close or tight position; to crowd; to squeeze; to wedge in; to cram; as, rock fans jammed the theater for the concert. [1913 Webster]
"The ship . . . jammed in between two rocks." [1913 Webster]

2.  To crush or bruise; as, to jam a finger in the crack of a door. [1913 Webster]

3.  To bring (a vessel) so close to the wind that half her upper sails are laid aback. W. C. Russell. [1913 Webster]

4.  To block or obstruct by packing too much (people or objects) into; as, shoppers jammed the aisles during the fire sale. [PJC]

5.  To interfere with (a radio signal) by sending other signals of the same or nearby frequency; as, the Soviets jammed Radio Free Europe broadcasts for years during the cold war. [PJC]

6.  To cause to become nonfunctional by putting something in that blocks the movement of a part or parts; as, he jammed the drawer by putting in too many loose papers; he jammed the lock by trying to pick it. [PJC]

1.  To become stuck so as not to function; as, the copier jammed again. [PJC]

2.  To play an instrument in a jam session. [PJC]

3.  To crowd together; -- usually used with together or in; as, fifty people jammed into a conference room designed for twenty. [PJC]

1.  A mass of people or objects crowded together; also, the pressure from a crowd; a crush; as, a jam in a street; a jam of logs in a river. [1913 Webster]

2.  An injury caused by jamming. [1913 Webster]

3.  A difficult situation; as, he got himself into a jam. [PJC]

   A preserve of fruit boiled with sugar and water; also called jelly; as, raspberry jam; currant jam; grape jam. [1913 Webster]

jam, v. & n.
--v.tr. & intr. (jammed, jamming)
1 a tr. (usu. foll. by into) squeeze or wedge into a space. b intr. become wedged.
2 a tr. cause (machinery or a component) to become wedged or immovable so that it cannot work. b intr. become jammed in this way.
3 tr. push or cram together in a compact mass.
4 intr. (foll. by in, on to) push or crowd (they jammed on to the bus).
5 tr. a block (a passage, road, etc.) by crowding or obstructing. b (foll. by in) obstruct the exit of (we were jammed in).
6 tr. (usu. foll. by on) apply (brakes etc.) forcefully or abruptly.
7 tr. make (a radio transmission) unintelligible by causing interference.
8 colloq. (in jazz etc.) extemporize with other musicians.
--n.
1 a squeeze or crush.
2 a crowded mass (traffic jam).
3 colloq. an awkward situation or predicament.
4 a stoppage (of a machine etc.) due to jamming.
5 (in full jam session) colloq. improvised playing by a group of jazz musicians.

Idiom:
jam-packed colloq. full to capacity.

Derivative:
jammer n.

jam, n. & v.
--n.
1 a conserve of fruit and sugar boiled to a thick consistency.
2 Brit. colloq. something easy or pleasant (money for jam).
--v.tr. (jammed, jamming)
1 spread jam on.
2 make (fruit etc.) into jam.

Idiom:
jam tomorrow a pleasant thing often promised but usu. never forthcoming.

Etymology:
perh. = JAM(1)

VB  join, unite, conjoin, connect, associate, put together, lay together, clap together, hang together, lump together, hold together, piece together, tack together, fix together, bind up together together, embody, reembody, roll into one, attach, fix, affix, saddle on, fasten, bind, secure, clinch, twist, make fast, tie, pinion, string, strap, sew, lace, tat, stitch, tack, knit, button, buckle, hitch, lash, truss, bandage, braid, splice, swathe, gird, tether, moor, picket, harness, chain, fetter, lock, latch, belay, brace, hook, grapple, leash, couple, accouple, link, yoke, bracket, marry, bridge over, span, braze, pin, nail, bolt, hasp, clasp, clamp, crimp, screw, rivet, impact, solder, set, weld together, fuse together, wedge, rabbet, mortise, miter, jam, dovetail, enchase, graft, ingraft, inosculate, entwine, intwine, interlink, interlace, intertwine, intertwist, interweave, entangle, twine round, belay, tighten, trice up, screw up, be joined, hang together, hold together, cohere.

N  clothing, investment, covering, dress, raiment, drapery, costume, attire, guise, toilet, toilette, trim, habiliment, vesture, vestment, garment, garb, palliament, apparel, wardrobe, wearing apparel, clothes, things, underclothes, array, tailoring, millinery, finery, full dress, garniture, theatrical properties, outfit, equipment, trousseau, uniform, regimentals, continentals, canonicals, livery, gear, harness, turn-out, accouterment, caparison, suit, rigging, trappings, traps, slops, togs, toggery, day wear, night wear, zoot suit, designer clothes, masquerade, dishabille, morning dress, undress, kimono, lungi, shooting-coat, mufti, rags, tatters, old clothes, mourning, weeds, duds, slippers, robe, tunic, paletot, habit, gown, coat, frock, blouse, toga, smock frock, claw coat, hammer coat, Prince Albert coat, sack coat, tuxedo coat, frock coat, dress coat, tail coat, cloak, pall, mantle, mantlet mantua, shawl, pelisse, wrapper, veil, cape, tippet, kirtle, plaid, muffler, comforter, haik, huke, chlamys, mantilla, tabard, housing, horse cloth, burnoose, burnous, roquelaure, houppelande, surcoat, overcoat, great coat, surtout, spencer, mackintosh, waterproof, raincoat, ulster, P-coat, dreadnought, wraprascal, poncho, cardinal, pelerine, barbe, chudder, jubbah, oilskins, pajamas, pilot jacket, talma jacket, vest, jerkin, waistcoat, doublet, camisole, gabardine, farthingale, kilt, jupe, crinoline, bustle, panier, skirt, apron, pinafore, bloomer, bloomers, chaqueta, songtag, tablier, pants, trousers, trowsers, breeches, pantaloons, inexpressibles, overalls, smalls, small clothes, shintiyan, shorts, jockey shorts, boxer shorts, tights, drawers, panties, unmentionables, knickers, knickerbockers, philibeg, fillibeg, pants suit, culottes, jeans, blue jeans, dungarees, denims, Levis, Calvin Klein, Calvins, Bonjour, Gloria Vanderbilt, headdress, headgear, chapeau, crush hat, opera hat, kaffiyeh, sombrero, jam, tam-o-shanter, tarboosh, topi, sola topi, pagri, puggaree, cap, hat, beaver hat, coonskin cap, castor, bonnet, tile, wideawake, billycock, wimple, nightcap, mobcap, skullcap, hood, coif, capote, calash, kerchief, snood, babushka, head, coiffure, crown, chignon, pelt, wig, front, peruke, periwig, caftan, turban, fez, shako, csako, busby, kepi, forage cap, bearskin, baseball cap, fishing hat, helmet, mask, domino, body clothes, linen, hickory shirt, shirt, sark, smock, shift, chemise, night gown, negligee, dressing gown, night shirt, bedgown, sac de nuit, underclothes, underpants, undershirt, slip, brassiere, corset, stays, corsage, corset, corselet, bodice, girdle, stomacher, petticoat, panties, under waistcoat, jock, athletic supporter, jockstrap, sweater, jersey, cardigan, turtleneck, pullover, sweater vest, neckerchief, neckcloth, tie, ruff, collar, cravat, stock, handkerchief, scarf, bib, tucker, boa, cummerbund, rumal, rabat, shoe, pump, boot, slipper, sandal, galoche, galoshes, patten, clog, sneakers, running shoes, hiking boots, high-low, Blucher boot, wellington boot, Hessian boot, jack boot, top boot, Balmoral, arctics, bootee, bootikin, brogan, chaparajos, chavar, chivarras, chivarros, gums, larrigan, rubbers, showshoe, stogy, veldtschoen, legging, buskin, greave, galligaskin, gamache, gamashes, moccasin, gambado, gaiter, spatterdash, brogue, antigropelos, stocking, hose, gaskins, trunk hose, sock, hosiery, glove, gauntlet, mitten, cuff, wristband, sleeve, swaddling cloth, baby linen, layette, ice wool, taffeta, pocket handkerchief, hanky, hankie, clothier, tailor, milliner, costumier, sempstress, snip, dressmaker, habitmaker, breechesmaker, shoemaker, Crispin, friseur, cordwainer, cobbler, hosier, hatter, draper, linen draper, haberdasher, mercer, diaper, nappy, disposable diaper, cloth diaper, Luvs Huggies, invested, habited, dighted, barbed, barded, clad, costume, shod, chausse, en grande tenue, sartorial, the soul of this man is his clothes.

N  pulpiness, pulp, taste, dough, curd, pap, rob, jam, pudding, poultice, grume, mush, oatmeal, baby food, pulpy, pultaceous, grumous, baccate.

N  sweetness, dulcitude, sugar, syrup, treacle, molasses, honey, manna, confection, confectionary, sweets, grocery, conserve, preserve, confiture, jam, julep, sugar-candy, sugar-plum, licorice, marmalade, plum, lollipop, bonbon, jujube, comfit, sweetmeat, apple butter, caramel, damson, glucose, maple sirup, maple syrup, maple sugar, mithai, sorghum, taffy, nectar, hydromel, mead, meade, metheglin, honeysuckle, liqueur, sweet wine, aperitif, sugar cane, sugar beets, desert, pastry, pie, cake, candy, ice cream, tart, puff, pudding (food), dulcification, dulcoration, sweetener, corn syrup, cane sugar, refined sugar, beet sugar, dextrose, artificial sweetener, saccharin, cyclamate, aspartame, Sweet'N Low, sweet, saccharine, sacchariferous, dulcet, candied, honied, luscious, lush, nectarious, melliferous, sweetened, sweet as a nut, sweet as sugar, sweet as honey, sickly sweet, eau sucr_ee, sweets to the sweet.

barrage jam, bear jam, blanket jam, jam in, jam packed, jam session, point jam, spot jam, strawberry jam, traffic jam