/meɪt ||; met/noun[C] 1 (informal 非正式) a friend or sb you live, work or do an activity with 朋友；同住者；同事；伙伴: He's an old mate of mine. 他是我的老朋友。a flatmate/classmate/team-mate/playmate 同住一公寓者；同学；队友；玩伴
2 (Brit 英) (slang 俚语) used when speaking to a man （用于称呼男子）老兄: Can you give me a hand, mate? 老兄，帮我一把，好吗？
3 one of a male and female pair of animals, birds, etc （鸟兽等的）配偶: The female sits on the eggs while her mate hunts for food. 雌性的孵卵，其配偶则出外觅食。
4 an officer on a ship （轮船的）大副，副手