trade (trd)n.
1. The business of buying and selling commodities; commerce. See Synonyms at business.
2. The people working in or associated with a business or industry: a textile-exporting publication for the trade.
3. The customers of a specified business or industry; clientele.
4. The act or an instance of buying or selling; transaction.
5. An exchange of one thing for another.
6. An occupation, especially one requiring skilled labor; craft: the building trades, including carpentry, masonry, plumbing, and electrical installation.
7. The trade winds. Often used in the plural with the.