mate

noun

1
a chess move constituting an inescapable and indefensible attack on the opponent's king
2
an exact duplicate
when a match is found an entry is made in the notebook
3
South American tea-like drink made from leaves of a South American holly called mate
4
the officer below the master on a commercial ship
5
informal term for a friend of the same sex
6
the partner of an animal (especially a sexual partner)
he loved the mare and all her mates
camels hate leaving their mates
7
a person's partner in marriage
8
a fellow member of a team
it was his first start against his former teammates
9
South American holly; leaves used in making a drink like tea
10
one of a pair
he lost the mate to his shoe
one eye was blue but its fellow was brown

1
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
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?

Also useful for “mate”:Unscrambler— Turn loose letters into real words