mate

the officer below the master on a commercial ship

a fellow member of a team; "it was his first start against his former teammates"

the partner of an animal (especially a sexual partner); "he loved the mare and all her mates"; "camels hate leaving their mates"

a person's partner in marriage

one of a pair; "he lost the mate to his shoe"; "one eye was blue but its fellow was brown"

informal term for a friend of the same sex

a chess move constituting an inescapable and indefensible attack on the opponent's king

engage in sexual intercourse; "Birds mate in the Spring"

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"

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"