interaction

noun

in·​ter·​ac·​tion ˌin-tər-ˈak-shən How to pronounce interaction (audio)
Synonyms of interaction
: 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.
Typically, companies seek feedback by sending a survey, usually by email, after the interaction between the company and the customer. Shep Hyken, Forbes.com, 24 May 2026 The next day several more reached out and spoke with a detective, all sharing details from their interactions with the therapist during their massages. Laura Bauer, Kansas City Star, 24 May 2026 Shortly after their social media interaction, Morris created an online fundraiser through sales of a T-shirt, and more than $150,000 was raised to benefit transgender programs. Tracy Wright, FOXNews.com, 23 May 2026 When younger generations don’t have interactions or relationships with older adults having vibrant lives, later chapters of life can be stereotyped as a time of pain, difficulty and loss, Emery-Tiburcio said. Madeline Holcombe, CNN Money, 23 May 2026 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 26 May. 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

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