n.[U]

1. 商業，貿易，交易
   Our overseas commerce has increased a great deal.

   我們的海外貿易已大大增加。

2. （思想，意見，感情的）交流；社交
   I have little commerce with my neighbors.

   我和鄰居很少來往。

3. 【古】性交

n.

1. the activity of buying and selling, especially on a large scale.
2. dated social dealings between people.
3. archaic sexual intercourse.