response āļāļ·āļāļāļ°āđāļĢ response āļāļ·āļāļāļ°āđāļĢ The act of responding.A reply or an answer.A reaction, as that of an organism or a mechanism, to a specific stimulus.Ecclesiastical Something that is spoken or sung by a congregation or choir in answer to the officiating minister or priest.A responsory.