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.
a tool, as a pry or a crowbar, for raising, moving, or opening something by leverage.
There's a small lever in my toolbox that'll be perfect for prying off these narrow moldings.
a handle or bar that is manipulated to operate, control, or adjust a machine, mechanism, etc..
Pushing down the lever on the left will automatically open the door.
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.
a rigid bar pivoted about a fulcrum, used to transfer a force to a load and usually to provide a mechanical advantage
any of a number of mechanical devices employing this principle
a means of exerting pressure in order to accomplish something; strategic aid
A simple machine consisting of a bar that pivots on a fixed support, or fulcrum, and is used to transmit torque. A force applied by pushing down on one end of the lever results in a force pushing up at the other end. If the fulcrum is not positioned in the middle of the lever, then the force applied to one end will not yield the same force on the other, since the torque must be the same on either side of the fulcrum. Levers, like gears, can thus be used to increase the force available from a mechanical power source.
See more at fulcrum See also mechanical advantage
1250–1300; Middle English levere, levour for *lever < Anglo-French; Old French levier, equivalent to lev ( er ) to lift (< Latin levāre to lighten, lift, verbal derivative of levis light) + -ier -ier 2
A lever is a handle, sticking out at an angle, that allows you to operate a machine or close a door. When you pull the lever of a voting booth, you both cast your ballot and open the curtain. All kinds of things — particularly machines — have levers. The word is also used to describe anything that you are able to use to move or influence someone else: think leverage. A headline in The New York Times said the government would use its contracts with private companies as a "wage lever," meaning the government would try to improve wages by giving work and money to companies that paid well and provided generous benefits. Levers get things done.
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Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
These features are only available for limited usage on current iPhones due to computing constraints, which will provide Apple with a powerful new monetization lever.
From MarketWatch • Jun. 9, 2026
Moreover, she believes efficiency gains from artificial intelligence represent another lever to lift earnings.
From Barron's • Jun. 4, 2026
“Currently available SAF supply does not meet global airline demand for even one week,” Delta Air Lines told investors earlier this year, also asserting SAF is “the most promising lever known today” to decarbonize flight.
From The Wall Street Journal • Jun. 2, 2026
"It gives us a new molecular lever -- and potentially a new set of tools -- for tackling these conditions."
From Science Daily • May 25, 2026
Reynie, meanwhile, was casting about for a hidden lever or knob—anything that might open the door.
From "The Mysterious Benedict Society" by Trenton Lee Stewart
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
