reciprocity

1. The characteristic of being reciprocal, e.g. of a relationship between people. (countable, uncountable) · In a friendship, reciprocity occurs where the contribution of each party meets the expectations of the other party.
2. A reciprocal relationship. (countable, uncountable) · Near-synonym: reciprocation
3. A relation of mutual dependence or action or influence. (countable, uncountable)
4. A reciprocal construction involves two noun phrases where each of the participants occupies both the role of agent and patient with respect to the other. see: Wikipedia:Reciprocal pronoun. (countable, uncountable)
5. The mutual exchange of rights, privileges or obligations between nations. see: Wikipedia:Reciprocity (international relations). (countable, uncountable)
6. The responses of individuals to the actions of others. (countable, uncountable)

Plural reciprocities