Noun

• S: (n) mate, first mate (the officer below the master on a commercial ship)
• S: (n) teammate, mate (a fellow member of a team) "it was his first start against his former teammates"
• S: (n) mate (the partner of an animal (especially a sexual partner)) "he loved the mare and all her mates"; "camels hate leaving their mates"
• S: (n) spouse, partner, married person, mate, better half (a person's partner in marriage)
• S: (n) match, mate (an exact duplicate) "when a match is found an entry is made in the notebook"
• S: (n) mate, fellow (one of a pair) "he lost the mate to his shoe"; "one eye was blue but its fellow was brown"
• S: (n) mate, Paraguay tea, Ilex paraguariensis (South American holly; leaves used in making a drink like tea)
• S: (n) mate (informal term for a friend of the same sex)
• S: (n) mate (South American tea-like drink made from leaves of a South American holly called mate)
• S: (n) checkmate, mate (a chess move constituting an inescapable and indefensible attack on the opponent's king)

Verb

• S: (v) copulate, mate, pair, couple (engage in sexual intercourse) "Birds mate in the Spring"
• S: (v) match, mate, couple, pair, twin (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"
• S: (v) checkmate, mate (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"