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See more synonyms for interact on Thesaurus.com
verb (used without object)
  1. to act one upon another.
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Origin of interact

First recorded in 1740–50; inter- + act
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

collaborate, relate, cooperate, merge, mesh, combine, connect, touch, contact, join, network, unite, interplay, interface

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British Dictionary definitions for interact


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

Word Origin and History for interact


"to act on each other," 1805, from inter- + act (v.). Related: Interacted; interacting.

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Online Etymology Dictionary, © 2010 Douglas Harper