Interacted

Interacted is the past tense and past participle of the verb interact. To interact means to communicate or work with someone or something, or to have an effect on one another. It can describe mutual action between people, groups, or entities, or the effect of one thing on another in a broader sense.

Etymology and sense: The word derives from the prefix inter- meaning between, combined with act, with the modern sense of interaction developing in the early modern period. The noun interaction comes from Latin inter‑actio via French and English, and the verb form interact is used to describe ongoing or general action, while interacted denotes completed or past action.

Usage: In everyday language, one might say, "The researchers interacted with local communities." In social contexts, "students interact with teachers." In science, "the two chemicals interacted to produce a color change." In computing, "the software records how users interacted with the interface" or "the system supports user interactions." The past tense interacted is used for actions that have already occurred.

Related forms and notes: Related words include interact (the base form), interaction (a mutual action or influence), interactive (describing two-way communication or user-driven experiences), and interaction design. The phrase "interact with" is standard when the object is a person or thing with which someone engages; "between" may be used to emphasize a reciprocal relationship involving two or more entities.