Definition of "reciprocate"

reciprocate

/ɹɪˈsɪpɹəˌkeɪt/

verb
third-person singular simple present reciprocates, present participle reciprocating, simple past and past participle reciprocated
1. (transitive) To exchange two things, with both parties giving one thing and taking another thing.
2. (transitive) To give something else in response (where the "thing" may also be abstract, a feeling or action) To make a reciprocal gift.
  Quotations
  Nugget appreciates the generosity! Nugget will reciprocate with a Monstermon card!
  2019, Con Man Games, SmashGames, quoting Nugget, Kindergarten 2, SmashGames
3. (intransitive) To move backwards and forwards, like a piston.
  Quotations
  One brawny smith the puffing bellows plies, / And draws and blows reciprocating air.
  1697, Virgil, “The Fourth Book of the Georgics”, in John Dryden, transl., The Works of Virgil: Containing His Pastorals, Georgics, and Æneis. […], London: […] Jacob Tonson, […]
4. (intransitive) To counter, retort or retaliate.