: a strong bar that is used to lift and move something heavy
: a bar or rod that is used to operate or adjust something on a machine, vehicle, device, etc.
: something used to achieve a desired result
Full Definition of LEVER
a: a bar used for prying or dislodging something
b: an inducing or compelling force :tool<use food as a political lever — Time>
a: a rigid piece that transmits and modifies force or motion when forces are applied at two points and it turns about a third; specifically: a rigid bar used to exert a pressure or sustain a weight at one point of its length by the application of a force at a second and turning at a third on a fulcrum
b: a projecting piece by which a mechanism is operated or adjusted