partner/ 'pɒːtnər /

1.noun [c] 
(wife,husband,girlfriend,boyfriend) 伴侣

2.noun
(in firm) 合伙人

3.noun
(in treaty,agreement etc) 合作者

4.noun [Sports] 
搭档

5.noun
(for cards,games) 对家

6.noun
(at dance) 舞伴

7.vt.[+person] 
(at dance) 做…的舞伴

8.vt.
(in card game) 做…的对家

business partner
生意伙伴