Adjective equivalent has 2 senses
  1. like, equal, equivalent, same - equal in amount or value; "like amounts"; "equivalent amounts"; "the same amount"; "gave one six blows and the other a like number"; "an equal number"; "the same number"
  2. equivalent, tantamount - being essentially equal to something; "it was as good as gold"; "a wish that was equivalent to a command"; "his statement was tantamount to an admission of guilt"
    Antonym: unequal (indirect, via equal)
,Noun equivalent has 2 senses
  1. equivalent - a person or thing equal to another in value or measure or force or effect or significance etc; "send two dollars or the equivalent in stamps"
    --1 is a kind of
    cognition, knowledge, noesis
    --1 has particulars:
     counterpart, opposite number, vis-a-vis; substitute, replacement
  2. equivalent, equivalent weight, combining weight, eq - 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
    --2 is a kind of atomic weight, relative atomic mass