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, our …

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.

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 …

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.

• Learning is through interaction with the environment rather than being preprogrammed. • The third dialectic involves the subject recognizing itself through interaction with other subjects. • She …

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

If you interact with someone — by talking, looking, sharing, or engaging in any kind of action that involves the two of you — you can be said to have had an interaction with that person.