Barter

To traffic or trade, by exchanging one commodity for another, in distinction from a sale and purchase, in which money is paid for the commodities transferred; to truck.

To trade or exchange in the way of barter; to exchange (frequently for an unworthy consideration); to traffic; to truck; -- sometimes followed by away; as, to barter away goods or honor.

The act or practice of trafficking by exchange of commodities; an exchange of goods.

The thing given in exchange.

an equal exchange; "we had no money so we had to live by barter"