Definition of "lever" in English

noun

1. (mechanics) A rigid piece which is capable of turning about one point, or axis (fulcrum), and in which are two or more other points where forces are applied; — used for transmitting and modifying force and motion.

2. A small such piece to trigger or control a mechanical device (like a switch or a button).

3. (mechanics) A bar, as a capstan bar, applied to a rotatory piece to turn it.

4. (mechanics) An arm on a rock shaft, to give motion to the shaft or to obtain motion from it.

5. (obsolete, except in generalized senses below) A crowbar.

verb

1. (transitive) To move with a lever.

   • With great effort and a big crowbar I managed to lever the beam off the floor.

2. (figuratively, transitive) To use, operate or move (something) like a lever (physically).

3. (figuratively, transitive) To use (something) like a lever (in an abstract sense).

4. (chiefly UK, finance) To increase the share of debt in the capitalization of a business.

adverb

1. (obsolete) Rather.

noun

1. (rare) A levee.