speed

speed · noun

imported

Definitions

noun

  1. 1.

    (noun) The rate at which something moves or operates.

  2. 2.

    (noun) Rapidity of movement or action.

  3. 3.

    (verb) To move quickly.

  4. 4.

    (verb) To cause to move or happen faster.

  5. 5.

    (verb) To drive faster than the legal limit.

  6. 6.

    (noun, slang) An amphetamine drug.

Forms

plural: speeds

Related words

Antonyms: slowness
See also: fast, quick, velocity
Synonyms: pace, rapidity, swiftness, velocity

Etymology

From Old English spēd ("success, prosperity, quickness"), from Proto-Germanic spōdiz ("success"), from Proto-Indo-European speh₁- ("to thrive, prosper"). The original meaning was "success" or "prosperity"; the sense of "quickness" developed from the idea of successful completion.