1.  lever(n = noun.artifact) - a rigid bar pivoted about a fulcrum;
is a kind of bar
has parts: fulcrum
has particulars: compound lever, crowbar, pry, pry bar, wrecking bar, gun trigger, trigger, hand throttle, key, cant dog, dog hook, peavey, peavy, foot lever, foot pedal, pedal, treadle, pinch bar, ripping bar, rocker arm, valve rocker, spark lever, control stick, joystick, stick, tappet, tiller, tire iron, tire tool
Derived form verb lever₁

2.  lever(n = noun.artifact) - a simple machine that gives a mechanical advantage when given a fulcrum;
is a kind of machine, simple machine
Derived form verb lever₁

3.  lever(n = noun.artifact) lever tumbler - a flat metal tumbler in a lever lock;
is a kind of tumbler
is a part of lever lock

   lever(v = verb.contact) jimmy, prise, prize, pry - to move or force, especially in an effort to get something open; "The burglar jimmied the lock"; "Raccoons managed to pry the lid off the garbage pail"
is one way to open, open up
Derived forms noun lever₁, noun lever₂, noun leverage₁
Sample sentences: Somebody ----s something; Somebody ----s something PP

   More agreeable; more pleasing. Chaucer. [1913 Webster]

   Rather. Chaucer. [1913 Webster]
"For lever had I die than see his deadly face." [1913 Webster]

1.  A rigid piece which is capable of turning about one point, or axis (the fulcrum), and in which are two or more other points where forces are applied; -- used for transmitting and modifying force and motion. Specif., a bar of metal, wood, or other rigid substance, used to exert a pressure, or sustain a weight, at one point of its length, by receiving a force or power at a second, and turning at a third on a fixed point called a fulcrum. It is usually named as the first of the six mechanical powers, and is of three kinds, according as either the fulcrum F, the weight W, or the power P, respectively, is situated between the other two, as in the figures. [1913 Webster]

2.  A bar, as a capstan bar, applied to a rotatory piece to turn it. [1913 Webster]

lever, n. & v.
--n.
1 a bar resting on a pivot, used to help lift a heavy or firmly fixed object.
2 Mech. a simple machine consisting of a rigid bar pivoted about a fulcrum (fixed point) which can be acted upon by a force (effort) in order to move a load.
3 a projecting handle moved to operate a mechanism.
4 a means of exerting moral pressure.
--v.
1 intr. use a lever.
2 tr. (often foll. by away, out, up, etc.) lift, move, or act on with a lever.

Idiom:
lever escapement a mechanism connecting the escape wheel and the balance wheel using two levers. lever watch a watch with a lever escapement.

Etymology:
ME f. OF levier, leveor f. lever raise: see LEVY

N  instrument, machinery, mechanism, engineering, instrument, organ, tool, implement, utensil, machine, engine, lathe, gin, mill, air engine, caloric engine, heat engine, gear, tackle, tackling, rig, rigging, apparatus, appliances, plant, materiel, harness, trappings, fittings, accouterments, barde, equipment, equipmentage, appointments, furniture, upholstery, chattels, paraphernalia, mechanical powers, lever, leverage, mechanical advantage, crow, crowbar, handspike, gavelock, jemmy, jimmy, arm, limb, wing, oar, paddle, pulley, wheel and axle, wheelwork, clockwork, wheels within wheels, pinion, crank, winch, cam, pedal, capstan, wheel, inclined plane, wedge, screw, spring, mainspring, can hook, glut, heald, heddle, jenny, parbuckle, sprag, water wheel, handle, hilt, haft, shaft, heft, shank, blade, trigger, tiller, helm, treadle, key, turnscrew, screwdriver, knocker, hammer, edge tool, borer, vice, teeth, nail, rope, peg, support, spoon, arms, oar, cardiograph, recapper, snowplow, tenpenny, votograph, instrumental, mechanical, machinal, brachial.

N  cause, origin, source, principle, element, occasioner, prime mover, primum mobile, vera causa, author, mainspring, agent, leaven, groundwork, foundation, spring, fountain, well, font, fountainhead, spring head, wellhead, fons et origo, genesis, descent, remote cause, influence, pivot, hinge, turning point, lever, crux, fulcrum, key, proximate cause, causa causans, straw that breaks the camel's back, ground, reason, reason why, why and wherefore, rationale, occasion, derivation, final cause, les dessous des cartes, undercurrents, rudiment, egg, germ, embryo, bud, root, radix radical, etymon, nucleus, seed, stem, stock, stirps, trunk, tap-root, gemmule, radicle, semen, sperm, nest, cradle, nursery, womb, nidus, birthplace, hotbed, causality, causation, origination, production, caused, causal, original, primary, primitive, primordial, aboriginal, protogenal, radical, embryonic, embryotic, in embryo, in ovo, seminal, germinal, at the bottom of, connate, having a common origin, because, behind the scenes, causa latet vis est notissima, felix qui potuit rerum cognoscere causas.

N  elevation, raising, erection, lift, sublevation, upheaval, sublimation, exaltation, prominence, lever, crane, derrick, windlass, capstan, winch, dredge, dredger, dredging machine, dumbwaiter, elevator, escalator, lift, elevated, stilted, attollent, rampant, on stilts, on the shoulders of, on one's legs, on one's hind legs.

compound lever, foot lever, gear lever, lever hang, lever lock, lever scale, lever tumbler, spark lever