InterAction is a convener, thought leader, and voice for nearly 200 NGOs working to eliminate extreme poverty, strengthen human rights, and more. INTERACTION definition: reciprocal action, effect, or influence. See examples of interaction used in a sentence. This disambiguation page lists articles associated with the title Interaction. If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. InterAction is a platform for managing and organizing business relationships effectively. Synonyms for INTERACTION: relation, intercourse, dealings, commerce, interrelationship, companionship, cross-fertilization, cross-pollination, company The meaning of INTERACTION is mutual or reciprocal action or influence. How to use interaction in a sentence. INTERACTION definition: 1. an occasion when two or more people or things communicate with or react to each other: 2. an…. Learn more. Can’t access your account? Warning, access to this system is restricted to authorised ABInBev personnel only. Define interaction. interaction synonyms, interaction pronunciation, interaction translation, English dictionary definition of interaction. n. 1. a. The act or process of interacting. b. The state of undergoing interaction. 2. Physics See fundamental interaction. American Heritage® Dictionary of. If you interact with someone — by talking, looking, sharing, or engaging in any kind of action that involves the two of you — you can be said to have had an interaction with that person.