lever

Noun
  1. A rigid bar pivoted about a fulcrum (synset 103664618)
    is a type of: bar - a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon
    subtypes:
    • compound lever - a pair of levers hinged at the fulcrum
    • crowbar, pry, pry bar, wrecking bar - a heavy iron lever with one end forged into a wedge
    • gun trigger, trigger - lever that activates the firing mechanism of a gun
    • hand throttle - a hand-operated lever that controls the throttle valve
    • key - a lever (as in a keyboard) that actuates a mechanism when depressed
    • cant dog, dog hook, peavey, peavy - a stout lever with a sharp spike; used for handling logs
    • foot lever, foot pedal, pedal, treadle - a lever that is operated with the foot
    • pinch bar - a lever with a pointed projection that serves as a fulcrum; used to roll heavy wheels
    • ripping bar - a steel lever with one end formed into a ripping chisel and the other a gooseneck with a claw for pulling nails
    • rocker arm, valve rocker - a lever pivoted at the center; used especially to push a valve down in an internal-combustion engine
    • spark lever - (on early automobiles) a lever mounted on the steering column and used to adjust the timing of the ignition
    • control stick, joystick, stick - a lever used by a pilot to control the ailerons and elevators of an airplane
    • tappet - a lever that is moved in order to tap something else
    • tiller - lever used to turn the rudder on a boat
    • tire iron, tire tool - hand tool consisting of a lever that is used to force the casing of a pneumatic tire onto a steel wheel
    has: fulcrum - the pivot about which a lever turns
  2. A simple machine that gives a mechanical advantage when given a fulcrum (synset 103665135)
    is a type of: machine, simple machine - a device for overcoming resistance at one point by applying force at some other point
  3. A flat metal tumbler in a lever lock (synset 103665012)
    is a type of: tumbler - a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown
    is a part of: lever lock - a lock whose tumblers are levers that must be raised to a given position so that the bolt can move
    same as: lever tumbler
Verb
  1. To move or force, especially in an effort to get something open (synset 201596175)
    "The burglar jimmied the lock"; "Raccoons managed to pry the lid off the garbage pail"
    entail: loose, loosen - make loose or looser
    is a type of: open, open up - cause to open or to become open
    same as: jimmy, prise, prize, pry

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