B1
to give something to someone and receive something similar from them
Dictionary examples:
The students exchanged homework, but nobody had actually done it. (0.0)
We exchanged compliments, but I just said 'You're less annoying today'. (0.0)
We exchanged phone numbers, but I accidentally gave her my pizza delivery hotline. (0.0)
We exchanged addresses and telephone numbers. (22.6)
It's traditional for the two teams to exchange shirts after the game. (31.0)