| a tooth for a tooth |
| an eye for an eye |
| barter(noun, trade, exchange, correspondence) |
| compensation(noun, trade, exchange, correspondence) |
| complementation(noun, trade, exchange, correspondence) |
| correspondence(noun, trade, exchange) |
| counteraction(noun, trade, exchange, correspondence) |
| counterattack(noun, trade, exchange, correspondence) |
| counterblow(noun, trade, exchange, correspondence) |
| exchange(noun, trade, correspondence) |
| eye for an eye(expression, idiom, trade, exchange, correspondence) |
| interchange(noun, trade, exchange, correspondence) |
| reciprocation(noun, trade, exchange, correspondence) |
| repayment(noun, trade, exchange, correspondence) |
| reply(noun, trade, exchange, correspondence) |
| reprisal(noun, trade, exchange, correspondence) |
| requital(noun, trade, exchange, correspondence) |
| retaliation(noun, trade, exchange, correspondence) |
| retribution(noun, trade, exchange, correspondence) |
| revenge(noun, trade, exchange, correspondence) |