2exchange verb
exchanges; exchanged; exchang·ing [+ obj] 1 : to give something and receive something in return
▪ We exchanged addresses and promised we'd write each other often. ▪ We exchange gifts [=give gifts to each other] at the holidays. ▪ These coupons can be exchanged for food. ▪ I'll exchange [=trade, swap] my orange for your pear. 2 : to direct (words, looks, etc.) at each other
▪ They exchanged glances. [=they looked quickly at each other] ▪ They exchanged greetings [=they greeted each other] when they met. ▪ They exchanged insults/blows. [=they insulted/hit each other] ▪ soldiers exchanging fire [=shooting at each other] 3 : to return (a product) to a store and have it replaced by another product : to trade (something that has been purchased) for something else
▪ I'd like to exchange this sweater for a smaller one. ▪ The vase had a crack in it, so he exchanged it (for an unbroken one). ▪ Can I exchange this vase? = Can you exchange this cracked vase for me?
▪ We exchanged addresses and promised we'd write each other often. ▪ We exchange gifts [=give gifts to each other] at the holidays. ▪ These coupons can be exchanged for food. ▪ I'll exchange [=trade, swap] my orange for your pear.
▪ They exchanged glances. [=they looked quickly at each other] ▪ They exchanged greetings [=they greeted each other] when they met. ▪ They exchanged insults/blows. [=they insulted/hit each other] ▪ soldiers exchanging fire [=shooting at each other]
▪ I'd like to exchange this sweater for a smaller one. ▪ The vase had a crack in it, so he exchanged it (for an unbroken one). ▪ Can I exchange this vase? = Can you exchange this cracked vase for me?
— ex·change·able 
/ɪksˈtʃeɪnʤəbəl/ adjective
▪ exchangeable merchandise
/ɪksˈtʃeɪnʤəbəl/ adjective ▪ exchangeable merchandise
