Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun counterpart

2 senses of counterpart

Sense 1
counterpart, opposite number, vis-a-vis -- (a person or thing having the same function or characteristics as another)
       => 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")

Sense 2
counterpart, similitude, twin -- (a duplicate copy)
       => duplicate, duplication -- (a copy that corresponds to an original exactly; "he made a duplicate for the files")