1.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. "The public becomes powerful in proportion to the opulence and extensive commerce of private men."
2.Social intercourse; the dealings of one person or class in society with another; familiarity. "Fifteen years of thought, observation, and commerce with the world had made him (Bunyan) wiser."
4.A round game at cards, in which the cards are subject to exchange, barter, or trade.