bar·ter 
(bärtər)
(bärtər)v. bar·tered, bar·ter·ing, bar·ters
v.intr.
To trade goods or services without the exchange of money.
v.tr.
To trade (goods or services) without the exchange of money.
n.
1. The act or practice of bartering.
2. Something bartered.
adj.
Of, relating to, or being something based on bartering: a barter economy.
[Middle English barteren, probably from Old French barater; see BARRATOR.]
barter·er n.