Lever

Mechanics . a rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third. Compare machine ( def. 4b ) .

a means or agency of persuading or of achieving an end

Saying that the chairman of the board likes the plan is just a lever to get us to support it.

Horology . the pallet of an escapement.

to move with or apply a lever

to lever a rock; to lever mightily and to no avail.

noun

bar , binder , crowbar , jack , jimmy , lam , machine , peavey , peavy , pedal , pry , tool , treadle