play back

(noun) the act of reproducing recorded sound. Synonyms: playback. Example: "He was allowed to hear the playback of his testimony."

(noun) electronic equipment comprising the part of a tape recorder that reproduces the recorded material. Synonyms: playback.

(verb) reproduce (a recording) on a recorder. Synonyms: play back, replay. Example: "The lawyers played back the conversation to show that their client was innocent."