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equivalent

Pronunciation: /ɪˈkwɪvələnt/

The English word “equivalent” has 10 meanings listed here.

adjective

  1. Similar or identical in value, meaning or effect; virtually equal.
  2. Of two sets, having a one-to-one correspondence.
  3. Relating to the corresponding elements of an equivalence relation.
  4. Of two categories, (informally) such that one is essentially a relabeling of the other; (formally) related by a pair of functors such the composition of the one with the other is naturally isomorphic to the identity functor.
  5. Having the equal ability to combine.
  6. Of a map, equal-area.
  7. Equal in measure but not admitting of superposition; applied to magnitudes.

noun

  1. Anything that is virtually equal to something else, or has the same value, force, etc.
  2. An equivalent weight.

verb

  1. To make equivalent to; to equal.

Etymology

From Latin aequivalentem, accusative singular of aequivalēns, present active participle of aequivaleō (“to be equivalent, have equal power”). By surface analysis, equi- + -valent. Mostly displaced native Middle English efenmete (See evenmete).

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.