Synonyms: trade, swop, swap, barter
Definition: an equal exchange
Usage: we had no money so we had to live by barter
Similar words: exchange, interchange
Definition: reciprocal transfer of equivalent sums of money (especially the currencies of different countries)
Usage: he earns his living from the interchange of currency
Synonyms: trade, switch, swop, swap
Definition: exchange or give (something) in exchange for
Similar words: change, interchange, exchange
Definition: give to, and receive from, one another
Usage: Would you change places with me?; We have been exchanging letters for a year