response

present participle of respond

plural of responding

(obsolete) Response, answer. / (now rare) Correspondence, agreement.

plural of responder

(transitive, intransitive) To say something in return; to answer; to reply. / (intransitive) To act in return; to carry out an action or in return to a force or stimulus; to do something in response.

A response. / A versicle or short anthem chanted at intervals during the reading of a lection.

Disposed or expected to respond; answering; according; corresponding.

One who responds; one who replies. / (law) A defendant, especially in a case instituted by a petition or in appellate and divorce proceedings. / A person replying to a questionnaire.

One who responds. / A person who responds to an emergency situation or other summons.