I. bar ‧ ter 1 /ˈbɑːtə $ ˈbɑːrtər/ BrE AmE verb [intransitive and transitive]
[ Date: 1400-1500 ; Language: French ; Origin: barater 'to cheat, exchange, barter' ]
to exchange goods, work, or services for other goods or services rather than for money
barter (with somebody) for something
I had to barter with the locals for food.
barter something for something
They bartered their grain for salt.
II. barter 2 BrE AmE noun [uncountable]
1 . a system of exchanging goods and services for other goods and services rather than using money:
Trading was carried out under a barter system.
2 . goods or services that are exchanged by bartering:
We used cigarettes for barter.