Definition of "Mate" :
noun: a chess move constituting an inescapable and indefensible attack on the opponent's king
noun: an exact duplicate
noun: South American tea-like drink made from leaves of a South American holly called mate
noun: the officer below the master on a commercial ship
noun: informal term for a friend of the same sex
noun: the partner of an animal (especially a sexual partner)
"He loved the mare and all her mates."
noun: a person's partner in marriage
noun: a fellow member of a team
"It was his first start against his former teammates."
noun: South American holly; leaves used in making a drink like tea
noun: one of a pair
"He lost the mate to his shoe."
verb: 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."
verb: bring two objects, ideas, or people together
verb: engage in sexual intercourse
"Birds mate in the Spring."