reciprocity
nounUK /ˌresɪˈprɒsəti/
US /ˌresɪˈprɑːsəti/
When you do something nice for someone and they do something nice back for you.
The two friends showed reciprocity by taking turns helping each other with homework.
RELATED WORDS
OTHER MEANINGS
2. A situation where two countries or groups agree to treat each other in the same way.
The two nations signed a trade agreement based on reciprocity.
3. The way two things affect each other equally, like action and reaction.
In physics, reciprocity explains how forces between two objects work both ways.
4. The practice of returning a favor or kindness you have received.
She believed in reciprocity, so she always thanked people who helped her.