interaction

noun

in·​ter·​ac·​tion ˌin-tər-ˈak-shən How to pronounce interaction (audio)
Synonyms of interactionnext
: mutual or reciprocal action or influence
interactional adjective

Examples of interaction in a Sentence

she guessed from the friendly interaction that they were close to the other parents in the organization
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Does a person’s rights during immigration enforcement interactions differ depending on venue? Devoun Cetoute, Miami Herald, 1 Jan. 2026 Game Nights Out With 84 percent of consumers saying technology has made social interactions feel less personal, bars and liquor brands are promoting screen-free gatherings, communal serves, analog entertainment, and rituals that spark real conversation. Michele Laufik, Martha Stewart, 31 Dec. 2025 This could include writing reports, filling out contracts, and analyzing data — all of which could free people up to work on the more creative, human interaction side of the job that AI can’t do. Gili Malinsky, CNBC, 31 Dec. 2025 There’s a strong desire for meaningful exchanges, rather than fickle interactions. Valerie Mesa, PEOPLE, 31 Dec. 2025 See All Example Sentences for interaction

Word History

First Known Use

1832, in the meaning defined above

Time Traveler
The first known use of interaction was in 1832

Browse Nearby Words

Cite this Entry

“Interaction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interaction. Accessed 2 Jan. 2026.

Kids Definition

interaction

noun
in·​ter·​ac·​tion ˌint-ə-ˈrak-shən How to pronounce interaction (audio)
: the action or influence of people, groups, or things on one another
interactional
-shnəl How to pronounce interaction (audio)
-shən-ᵊl
adjective

Medical Definition

interaction

noun
in·​ter·​ac·​tion ˌint-ə-ˈrak-shən How to pronounce interaction (audio)
: mutual or reciprocal action or influence
interaction of the heart and lungs
interactional adjective

More from Merriam-Webster on interaction

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