Find 1,494 synonyms for interaction and other similar words that you can use instead based on 10 separate contexts from our thesaurus. Find 833 synonyms for Interaction to improve your writing and expand your vocabulary. Find 24 different ways to say INTERACTION, along with antonyms, related words, and example sentences at Thesaurus.com. Synonyms for INTERACTION: relation, intercourse, dealings, commerce, interrelationship, companionship, cross-fertilization, cross-pollination, company These are other word, synonyms and antonyms of interaction: communication, conversation, dialogue, exchange, engagement, connection, relationship, liaison, cooperation, collaboration, coordination, reciprocity, interplay, interchange, mutualism definition | English Collocations | Conjugator | in Spanish | in French | in context | images interaction WordReference English Thesaurus © 2025 Synonyms: communication, interplay, intercommunication, cooperation, synergy, exchange, speaking, talking, engagement, tit for tat (informal) Synonyms for INTERACTION in English: communication, relationship, rapport, contact, connections, intercourse, … Browse the complete thesaurus entry for Interaction, including synonyms and antonyms, and related words. Synonyms for INTERACTIONS: relations, dealings, intercourses, commerces, interrelationships, companionships, cross-pollinations, cross-fertilizations; Antonyms of INTERACTIONS: nonintercourses The term 'Interaction' in classic thesaurus. Find out the synonyms, antonyms and definition.