the act or process of buying, selling, or exchanging commodities, at either wholesale or retail, within a country or between countries

domestic trade; foreign trade.

a purchase or sale; business deal or transaction.

an exchange of items, usually without payment of money.

any occupation pursued as a business or livelihood.

some line of skilled manual or mechanical work; craft

the trade of a carpenter; printer's trade.

people engaged in a particular line of business

a lecture of interest only to the trade.

market

an increase in the tourist trade.

a field of business activity

a magazine for the furniture trade.

the customers of a business establishment.

Informal . trade paper.

trades. trade wind ( def. 1 ) .

to buy and sell; barter; traffic in.

to exchange

to trade seats.

to carry on trade.

to traffic (usually fol. by in )

a tyrant who trades in human lives.

to make an exchange.

to make one's purchases; shop; buy.

of or pertaining to trade or commerce.

used by, serving, or intended for a particular trade

trade journal.

Also, trades. of, composed of, or serving the members of a trade

a trade club.

trade down, to exchange a more valuable or desirable item for a less valuable or desirable one.

trade in, to give (a used article) as payment to be credited toward a purchase

We trade in our car every three years.

trade off, to exchange something for or with another.

trade on or upon, to turn to one's advantage, esp. selfishly or unfairly; exploit

to trade on the weaknesses of others.

trade up, to exchange a less valuable or desirable item for a more valuable or desirable one.