[ in-ter-akt ]
See synonyms for: interactinteractedinteractinginteracts on

verb (used without object)
  1. to act one upon another: A person's microbiome and immune system may interact in ways that promote inflammation.

  2. to communicate, work, or participate in an activity with someone or something: a boss who seldom interacts with employees; a user interacting with a computer program.

Origin of interact

First recorded in 1740–50; inter- + act Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use interact in a sentence

British Dictionary definitions for interact


/ (ˌɪntərˈækt) /

  1. (intr) to act on or in close relation with each other

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012