noun sexual intercourse.
2. commerce ·vi to carry on trade; to traffic.
3. commerce ·vi to hold intercourse; to commune.
4. commerce ·noun a round game at cards, in which the cards are subject to exchange, barter, or trade.
5. commerce ·noun social intercourse; the dealings of one person or class in society with another; familiarity.
6. commerce ·noun the exchange or buying and selling of commodities; ·esp. the exchange of merchandise, on a large scale, between different places or communities; extended trade or traffic.