mart UK /mɑːt/US /mɑɹt/noun 7verb 2forms 3 noun7 •[in compounds] (US, Canada) A shop, a store, a market. •A bazaar, fair, market, or marketplace.In that day, drovers would drive their cattle to the marts on the coast.Their facility is one of the largest livestock auction marts in the Scottish Highlands. •A head of feeder cattle or fattened cattle (usually the latter). •Salt beef. •(historical) A marque (chiefly used in the phrase letters of mart). •(no longer used) A bargain.Faith Gentlemen now I play a marchants part, And venture madly on a desperate Mart. — 1590 •(no longer used) A battle; a contest. verb2 •(no longer used) To buy or sell in, or as in a mart.To sell and mart your officer for gold To undeservers. — 1599 •(no longer used) To traffic. formsmarted · marting · marts