WordNet sense 1 (a person regarded as a good matrimonial prospect):

catch

WordNet sense 2 (a person who is of equal standing with another in a group):

compeer, equal, peer, peer

WordNet sense 3 (a pair of people who live together):

couple, mates

WordNet sense 4 (an exact duplicate):

mate, mate

WordNet sense 5 (lighter consisting of a thin piece of wood or cardboard tipped with combustible chemical; ignites with friction):

Lucifer, friction match

WordNet sense 6 (be compatible, similar or consistent; coincide in their characteristics):

agree, check, correspond, fit, gibe, jibe, tally

WordNet sense 7 (satisfy or fulfill):

meet, cope with

WordNet sense 8 (be equal to in quality or ability):

rival, touch

WordNet sense 9 (bring two objects, ideas, or people together):

pair, twin

WordNet sense 10 (set into opposition or rivalry):

oppose, pit

WordNet sense 11 (make equal, uniform, corresponding, or matching):

equalize, equate, equalise