American English

Definition of mate noun from the Oxford Advanced American Dictionary



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    someone you share with
  1. 1[countable] (in compounds) a person you share an activity or living space with teammates/playmates/classmates my roommate see also running mate, soulmate
  2. bird/animal
  3. 2[countable] either of a pair of birds or animals A male bird sings to attract a mate.
  4. sexual partner
  5. 3[countable] (informal) a husband, wife, or other sexual partner
  6. on ship
  7. 4[countable] an officer in a commercial ship below the rank of captain or master see also first mate
  8. in chess
  9. 5[uncountable] = checkmate
See the Oxford Advanced Learner's Dictionary entry: mate