From WordNet (r) 3.0 (2006):
mate
n 1: the officer below the master on a commercial ship [syn:
mate, first mate]
2: a fellow member of a team; "it was his first start against
his former teammates" [syn: teammate, mate]
3: the partner of an animal (especially a sexual partner); "he
loved the mare and all her mates"; "camels hate leaving their
mates"
4: a person's partner in marriage [syn: spouse, partner,
married person, mate, better half]
5: an exact duplicate; "when a match is found an entry is made
in the notebook" [syn: match, mate]
6: one of a pair; "he lost the mate to his shoe"; "one eye was
blue but its fellow was brown" [syn: mate, fellow]
7: South American holly; leaves used in making a drink like tea
[syn: mate, Paraguay tea, Ilex paraguariensis]
8: informal term for a friend of the same sex
9: South American tea-like drink made from leaves of a South
American holly called mate
10: a chess move constituting an inescapable and indefensible
attack on the opponent's king [syn: checkmate, mate]
v 1: engage in sexual intercourse; "Birds mate in the Spring"
[syn: copulate, mate, pair, couple]
2: bring two objects, ideas, or people together; "This fact is
coupled to the other one"; "Matchmaker, can you match my
daughter with a nice young man?"; "The student was paired
with a partner for collaboration on the project" [syn:
match, mate, couple, pair, twin]
3: place an opponent's king under an attack from which it cannot
escape and thus ending the game; "Kasparov checkmated his
opponent after only a few moves" [syn: checkmate, mate]