Reciprocity n. : Mutual action and reaction.

Reciprocity n. : Reciprocal advantages, obligations, or rights; reciprocation.

Example:
What states does washington have Reciprocity with for college?

Taxonomy
Reciprocity, in-kind, free encyclopedia, principle, negative responses, relation to, theorems, interaction, Social sciences, sciences and humanities, mathematics, search, free dictionary, Professional Certification, Natural sciences, Golden Rule, ethics, religion.

Defination from the web:
Reciprocity (evolution), mechanisms for the evolution of cooperation. Reciprocity (international relations), a principle that favours, benefits, or penalties that are granted by one state to the ... Reciprocity (cultural anthropology) and in relation to non-market economic exchange ...