Thesaurus

(adj) : relating to or used in or intended for trade or commerce; "a trade fair"; "trade journals"; "trade goods"

(n) : the commercial exchange (buying and selling on domestic or international markets) of goods and services; the collective people who perform a particular kind of skilled work; "he represented the craft of brewers"; "as they say in the trade"

(v) : to engage in the trade of; to be traded at a certain price or under certain conditions; as in stock trade