adjective
Definition: Relating to a mutual relationship between two or more people or things, where each side gives and receives something in return.
Example: The two countries established reciprocal trade agreements to benefit both economies.
noun
Definition: A number or value that, when multiplied by another, results in one. For example, the reciprocal of 5 is 1/5. It can also refer to something that is related to another in a mutual way.
Example: In mathematics, the reciprocal of a fraction is found by flipping the numerator and denominator.