Available Definitions:
1) v. - The sale of commodities in small quantities or parcels; -- opposed to wholesale; sometimes, the sale of commodities at second hand.
2) a. - Done at retail; engaged in retailing commodities; as a retail trade; a retail grocer.
3) n. - To sell in small quantities, as by the single yard, pound, gallon, etc.; to sell directly to the consumer; as, to retail cloth or groceries.
4) n. - To sell at second hand.
5) n. - To distribute in small portions or at second hand; to tell again or to many (what has been told or done); to report; as, to retail slander.