mate in WordNet English dictionary

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

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"
   checkmate  mate 
   
2. engage in sexual intercourse
   "Birds mate in the Spring"
   copulate  mate  pair  couple 
   
3. 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"
   match  mate  couple  pair  twin