1. To discuss lightly; SYN. kick around.
2. To exchange blows.
3. To toss or strike a ball back and forth, as in tennis, hockey, etc.

To pass around, as of rumors.

1. To go down.
2. To grow smaller; SYN. go down, wane.
3. Said of nouns, pronouns, and adjectives: to add case endings (accusative, dative, etc.), in certain languages.

1. To give to, and receive from, one another; SYN. change, interchange, trade.
2. To exchange prisoners, employees, etc.

1. To give and take mutually
2. To return in kind or degree
3. To make a return for something
4. To move forward and backward alternately
5. To act, feel, or give in return