The meaning of INTERACTION is mutual or reciprocal action or influence. How to use interaction in a sentence.

Communicating & keeping in touch (Definition of interaction from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Definition of interaction noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

(of two or more people, things etc) to act, or have some effect, on each other.

Established in 1984, InterAction is the leading national alliance of NGOs and partners in the United States. With a focus on serving the world’s impoverished and vulnerable populations, our …

A conversation or exchange between people. I enjoyed the interaction with a bunch of like-minded people.

INTERACTION definition: reciprocal action, effect, or influence. See examples of interaction used in a sentence.

One possible drug interaction can involve the drugs working together to have a stronger effect. An interaction between medications occurs when the effectiveness of one medication is altered by …

Interaction is a reciprocal action or influence that occurs between two or more objects, substances, people or systems, where each has an effect on the other. It could be in form of communication, …

Feb 21, 2026 · interaction (countable and uncountable, plural interactions) The situation or occurrence in which two or more objects or events act upon one another to produce an effect; the effect resulting …