a man dealing with (someone), transacting in (something).

a man who trades; a merchant or trader.

the selling of goods in relatively large quantities and usu. at lower prices than at retail, esp. such selling to retailers for resale to consumers.

an occupation; a trade; a vocation.

energetic action; activity.

the buying and selling of commodities or the bartering of goods; trade; commerce.

the doing of something; the state of being in motion or of working.