1.  pressure(n = noun.phenomenon) force per unit area, pressure level - the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit); "the compressed gas exerts an increased pressure"
is a kind of physical phenomenon
has particulars: blood pressure, gas pressure, head, hydrostatic head, intraocular pressure, iop, oil pressure, osmotic pressure, corpuscular-radiation pressure, radiation pressure, instantaneous sound pressure, sound pressure, suction, vapor pressure, vapour pressure
Derived forms verb press₁, verb pressurise₃, verb pressurise₂, verb pressurise₁, verb pressurize₃, verb pressurize₂, verb pressurize₁

2.  pressure(n = noun.attribute) - a force that compels; "the public brought pressure to bear on the government"
is a kind of force
Derived forms verb press₂, verb pressure₁, verb pressure₂

3.  pressure(n = noun.act) press, pressing - the act of pressing; the exertion of pressure; "he gave the button a press"; "he used pressure to stop the bleeding"; "at the pressing of a button"
is a kind of push, pushing
has particulars: impression, compressing, compression
Derived form verb press₁

4.  pressure(n = noun.state) imperativeness, insistence, insistency, press - the state of demanding notice or attention; "the insistence of their hunger"; "the press of business matters"
is a kind of urgency
Derived forms verb press₈, verb pressure₁, verb pressure₂

5.  pressure(n = noun.cognition) pressure sensation - the somatic sensation that results from applying force to an area of skin; "the sensitivity of his skin to pressure and temperature was normal"
is a kind of somaesthesia, somatesthesia, somatic sensation, somesthesia

6.  pressure(n = noun.state) - an oppressive condition of physical or mental or social or economic distress;
is a kind of distress

7.  pressure(n = noun.phenomenon) air pressure, atmospheric pressure - the pressure exerted by the atmosphere;
is a kind of gas pressure
has particulars: barometric pressure, compartment pressure, overpressure, sea-level pressure

1.  pressure(v = verb.social) coerce, force, hale, squeeze - to cause to do through pressure or necessity, by physical, moral or intellectual means :; "She forced him to take a job in the city"; "He squeezed her for information"
is one way to compel, obligate, oblige
Derived forms noun pressure₂, noun pressure₄
Sample sentences: They pressure him to write the letter

2.  pressure(v = verb.social) blackjack, blackmail - exert pressure on someone through threats;
is one way to act upon, influence, work
Derived forms noun pressure₂, noun pressure₄
Sample sentences: Somebody ----s somebody

1.  The act of pressing, or the condition of being pressed; compression; a squeezing; a crushing; as, a pressure of the hand. [1913 Webster]

2.  A contrasting force or impulse of any kind; as, the pressure of poverty; the pressure of taxes; the pressure of motives on the mind; the pressure of civilization. [1913 Webster]
"Where the pressure of danger was not felt." [1913 Webster]

3.  Affliction; distress; grievance. [1913 Webster]
"My people's pressures are grievous." [1913 Webster]
"In the midst of his great troubles and pressures." [1913 Webster]

4.  Urgency; as, the pressure of business. [1913 Webster]

5.  Impression; stamp; character impressed. [1913 Webster]
"All saws of books, all forms, all pressures past." [1913 Webster]

6.  The action of a force against some obstacle or opposing force; a force in the nature of a thrust, distributed over a surface, often estimated with reference to the amount upon a unit's area. [1913 Webster]

7.  Electro-motive force. [Webster 1913 Suppl.]

pressure, n. & v.
--n.
1 a the exertion of continuous force on or against a body by another in contact with it. b the force exerted. c the amount of this (expressed by the force on a unit area) (atmospheric pressure).
2 urgency; the need to meet a deadline etc. (work under pressure).
3 affliction or difficulty (under financial pressure).
4 constraining influence (if pressure is brought to bear).
--v.tr.
1 apply (esp. moral) pressure to.
2 a coerce. b (often foll. by into) persuade (was pressured into attending).

Idiom:
pressure-cook cook in a pressure-cooker. pressure-cooker an airtight pan for cooking quickly under steam pressure. pressure gauge a gauge showing the pressure of steam etc. pressure group a group or association formed to promote a particular interest or cause by influencing public policy. pressure point
1 a point where an artery can be pressed against a bone to inhibit bleeding.
2 a point on the skin sensitive to pressure.
3 a target for political pressure or influence. pressure suit an inflatable suit for flying at a high altitude.

Etymology:
ME f. L pressura (as PRESS(1))

N  importance, consequence, moment, prominence, consideration, mark, materialness, import, significance, concern, emphasis, interest, greatness, superiority, notability, weight, value, usefulness, gravity, seriousness, solemnity, no joke, no laughing matter, pressure, urgency, stress, matter of life and death, memorabilia, notabilia, great doings, red-letter day, great thing, great point, main chance, the be all and the end all, cardinal point, substance, gist, sum and substance, gravamen, head and front, important part, principal part, prominent part, essential part, half the battle, sine qua non, breath of one's nostrils, cream, salt, core, kernel, heart, nucleus, keynote, keystone, corner stone, trump card, salient points, top sawyer, first fiddle, prima donna, chief, triton among the minnows, 'it', important, of importance, momentous, material, to the point, not to be overlooked, not to be despised, not to be sneezed at, egregious, weighty, of note, notable, prominent, salient, signal, memorable, remarkable, unforgettable, worthy of remark, worthy of notice, never to be forgotten, stirring, eventful, grave, serious, earnest, noble, grand, solemn, impressive, commanding, imposing, urgent, pressing, critical, instant, paramount, essential, vital, all-absorbing, radical, cardinal, chief, main, prime, primary, principal, leading, capital, foremost, overruling, of vital importance in the front rank, first-rate, superior, considerable, marked, rare, significant, telling, trenchant, emphatic, pregnant, tanti, materially, in the main, above all, kat' exochin, par excellence, to crown all, to beat all, expende Hannibalem!.

N  adversity, evil, failure, bad luck, ill luck, evil luck, adverse luck, hard fortune, hard hap, hard luck, hard lot, frowns of fortune, evil dispensation, evil star, evil genius, vicissitudes of life, ups and downs of life, broken fortunes, hard case, hard lines, hard life, sea of troubles, peck of troubles, hell upon earth, slough of despond, trouble, hardship, curse, blight, blast, load, pressure, pressure of the times, iron age, evil day, time out of joint, hard times, bad times, sad times, rainy day, cloud, dark cloud, gathering clouds, ill wind, visitation, infliction, affliction, bitter pill, care, trial, the sport of fortune, mishap, mischance, misadventure, misfortune, disaster, calamity, catastrophe, accident, casualty, cross, reverse, check, contretemps, rub, backset, comedown, setback, losing game, falling, fall, downfall, ruination, ruinousness, undoing, extremity, ruin, unfortunate, unblest, unhappy, unlucky, improsperous, unprosperous, hoodooed, luckless, hapless, out of luck, in trouble, in a bad way, in an evil plight, under a cloud, clouded, ill off, badly off, in adverse circumstances, poor, behindhand, down in the world, decayed, undone, on the road to ruin, on its last legs, on the wane, in one's utmost need, planet-struck, devoted, born under an evil star, born with a wooden ladle in one's mouth, ill-fated, ill-starred, ill-omened, adverse, untoward, disastrous, calamitous, ruinous, dire, deplorable.

N  power, potency, potentiality, jiva, puissance, might, force, energy, dint, right hand, right arm, ascendency, sway, control, prepotency, prepollence, almightiness, omnipotence, authority, strength, ability, ableness, competency, efficacy, efficiency, productivity, expertise (skill), validity, cogency, enablement, vantage ground, influence, pressure, conductivity, elasticity, gravity, electricity, magnetism, galvanism, voltaic electricity, voltaism, electromagnetism, atomic power, nuclear power, thermonuclear power, fuel cell, hydraulic power, water power, hydroelectric power, solar power, solar energy, solar panels, tidal power, wind power, attraction, vis inertiae, vis mortua, vis viva, potential energy, dynamic energy, dynamic friction, dynamic suction, live circuit, live rail, live wire, capability, capacity, quid valeant humeri quid ferre recusent, faculty, quality, attribute, endowment, virtue, gift, property, qualification, susceptibility, powerful, puissant, potential, capable, able, equal to, up to, cogent, valid, efficient, productive, effective, effectual, efficacious, adequate, competent, multipotent, plenipotent, omnipotent, almighty, forcible, (energetic), influential, productive, powerfully, by virtue of, by dint of, a toute force, dos moi pou sto kai kino ten gen, eripuit coelo fulmen sceptrumque tyrannis, fortis cadere cedere non potest.

N  excitation of feeling, mental excitement, suscitation, galvanism, stimulation, piquance, piquancy, provocation, inspiration, calling forth, infection, animation, agitation, perturbation, subjugation, fascination, intoxication, enravishment, entrancement, pressure, tension, high pressure, unction, impressiveness, trail of temper, casus belli, irritation, passion, thrill, repression of feeling, sensationalism, yellow journalism, excited, wrought up, up the qui vive, astir, sparkling, in a quiver, in a fever, in a ferment, in a blaze, in a state of excitement, in hysterics, black in the face, overwrought, tense, taught, on a razor's edge, hot, red-hot, flushed, feverish, all of a twitter, in a pucker, with quivering lips, with tears in one's eyes, flaming, boiling over, ebullient, seething, foaming at the mouth, fuming, raging, carried away by passion, wild, raving, frantic, mad, distracted, beside oneself, out of one's wits, ready to burst, bouleverse, demoniacal, lost, eperdu, tempest-tossed, haggard, ready to sink, stung to the quick, up, on one's high ropes, exciting, absorbing, riveting, distracting, impressive, warm, glowing, fervid, swelling, imposing, spirit-stirring, thrilling, high-wrought, soul-stirring, soul-subduing, heart-stirring, heart- swelling, heart-thrilling, agonizing, telling, sensational, hysterical, overpowering, overwhelming, more than flesh and blood can bear, yellow, piquant, spicy, appetizing, provocative, provoquant, tantalizing, eager to go, anxious to go, chafing at the bit, till one is black in the face, the heart beating high, the heart going pitapat, the heart leaping into one's mouth, the blood being up, the blood boiling in one's veins, the eye glistening, the eyes in a fine frenzy rolling, the head turned, when the going gets tough, the tough get going.

N  influence, importance, weight, pressure, preponderance, prevalence, sway, predominance, predominancy, ascendency, dominance, reign, control, domination, pull, authority, capability, effect, interest, synergy (cooperation), footing, purchase, play, leverage, vantage ground, tower of strength, host in himself, protection, patronage, auspices, influential, effective, important, weighty, prevailing, prevalent, rife, rampant, dominant, regnant, predominant, in the ascendant, hegemonical, with telling effect, tel maure tel valet.

N  gravity, gravitation, weight, heaviness, specific gravity, pondorosity, pressure, load, burden, burthen, ballast, counterpoise, lump of, mass of, weight of, lead, millstone, mountain, Ossa on Pelion, weighing, ponderation, trutination, weights, avoirdupois weight, troy weight, apothecaries' weight, grain, scruple, drachma, ounce, pound, lb, arroba, load, stone, hundredweight, cwt, ton, long ton, metric ton, quintal, carat, pennyweight, tod, gram, centigram, milligram, microgram, kilogram, nanogram, picogram, femtogram, attogram, balance, scale, scales, steelyard, beam, weighbridge, spring balance, piezoelectric balance, analytical balance, two-pan balance, one-pan balance, postal scale, baby scale, statics, weighty, weighing, heavy as lead, ponderous, ponderable, lumpish, lumpy, cumbersome, burdensome, cumbrous, unwieldy, massive, incumbent, superincumbent.

acoustic radiation pressure, air pressure, arterial pressure, atmospheric pressure, barometric pressure, blood pressure, compartment pressure, corpuscular-radiation pressure, diastolic pressure, gas pressure, high blood pressure, high pressure, instantaneous sound pressure, intraocular pressure, low pressure, oil pressure, osmotic pressure, pressure cabin, pressure cooker, pressure dome, pressure feed, pressure gage, pressure gauge, pressure group, pressure level, pressure point, pressure sensation, pressure sore, pressure suit, pressure unit, pressure wires, radiation pressure, sound pressure, sound pressure level, standard pressure, systolic pressure, turn up the pressure, vapor pressure, vapour pressure, venous pressure