equivalent

Reading level: hard

Estimated CEFR level: B2 — Upper-Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a person or thing equal to another in value or measure or force or effect or significance etc
  2. noun the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8 for oxygen
  3. adjective being essentially equal to something

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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