(historical) A silver coin minted as a trade coin by various countries to facilitate trade with China and the Orient.

plural of trade dollar

An exhibition at which members of a specific industry exhibit or demonstrate their products to prospective customers and to each other

Any situation in which the quality or quantity of one thing must be decreased for another to be increased.

A trade fair

(informal) The fashion industry.

(idiomatic) A shortcut or other quick, or very effective way of doing things, that professional workers learn from experience.

plural of trick of the trade

(publishing) A book that is marketed to a general audience (as opposed to books that have specialized audiences, such as academic books).

An early precursor of the business card, first produced at the beginning of the seventeenth century. / A trading card (such as a cigarette card).