The act or process of interchanging.
The definition of back-scratching refers to an exchange of favors.
The act or an instance of exchanging:
Find another word for reciprocity. In this page you can discover 13 synonyms, antonyms, idiomatic expressions, and related words for reciprocity, like: interchange, mutual understanding, back-scratching, mutuality, reciprocality, congruence, complementarity, interdependence, connectedness, exchange and altruism.