Definition of "interact" in English

verb

1. (intransitive) To act upon each other.

noun

1. (dated) A short act or piece between others, as in a play; a break between acts.

   • 1912, William Archer, London: Chapman & Hall, Chapter 8, pp. 108-109, […] the flight of time is best indicated by an interact. When the curtain is down, the action on the stage remains, as it were, in suspense. The audience lets its attention revert to the affairs of real life; and it is quite willing, when the mimic world is once more revealed, to suppose that any reasonable space of time has elapsed […]

2. (obsolete) Intermediate employment or time.

   • 1750, Philip Stanhope, 4th Earl of Chesterfield, Letters Written […] to His Son, London: P. Dodsley, 10th edition, 1792, Volume 2, Letter 219, p. 344, Play, in good company, is only play, and not gaming; not deep, and consequently not dangerous nor dishonourable. It is only the inter-acts of other amusements.

3. (social sciences) A pair or series of acts involving more than one person.