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

Jun 23, 2025 · Established in 1984, InterAction is the leading alliance of NGOs and partners in the United States. With a focus on serving the world’s impoverished and vulnerable populations, …

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

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

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

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

interaction definition: communication or direct involvement with someone or something. Check meanings, examples, usage tips, pronunciation, domains, and related words.

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

in•ter•ac•tion, n. [uncountable] social interaction between men and women. [countable] day-to-day interactions. in•ter•ac•tive, adj.: Interactive video lets the user decide what to see on the screen.

interaction noun [C, U] (THINGS) the way that two or more things combine and have an effect on each other