trade

1. 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.

   Synonyms: dealing, barter, business

2. the act of buying, selling, or exchanging stocks, bonds, or currency:

   Stock brokerages typically charge a commission per trade.

3. a purchase or sale; business deal or transaction.
4. an exchange of items, usually without payment of money.

   Synonyms: swap

5. Sports. the transfer of a player or players among professional teams:

   a midseason trade.

6. any occupation pursued as a business or livelihood.

   Synonyms: craft, living, employment, métier, vocation

7. some line of skilled manual or mechanical work; craft:

   the trade of a carpenter; printer's trade.

8. people engaged in a particular line of business:

   a lecture of interest only to the trade.

9. market:

   an increase in the tourist trade.

10. a field of business activity:

    a magazine for the furniture trade.

11. the customers of a business establishment.
12. Informal. trade paper.
13. trades. trade wind ( def 1 ).

1. to buy and sell; barter; traffic in.
2. to exchange:

   to trade seats.

3. Sports. to transfer (a player under contract) from one team to another:

   The manager traded two defensive players at the end of the season.

1. to carry on trade.
2. to be bought, sold, or exchanged:

   Stocks traded lower after the release of the jobs report.

3. to traffic (usually followed by in ):

   a tyrant who trades in human lives.

4. to make an exchange.
5. to make one's purchases; shop; buy.

1. of or relating to trade or commerce.
2. used by, serving, or intended for a particular trade:

   trade journal.

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

   a trade club.

verb phrase

1. to turn to one's advantage, especially selfishly or unfairly; exploit:

   to trade on the weaknesses of others.

2. to exchange a less valuable or desirable item for a more valuable or desirable one.
3. to exchange something for or with another.
4. to give (a used article) as payment to be credited toward a purchase:

   We trade in our car every three years.

5. to exchange a more valuable or desirable item for a less valuable or desirable one.