- playback - the act of reproducing recorded sound; "he was allowed to hear the playback of his testimony"
 --1 is a kind of sound reproduction
 Derived form: verb play back1 
- playback - electronic equipment comprising the part of a tape recorder that reproduces the recorded material
 --2 is a kind of electronic equipment
 --2 is a part of recorder, recording equipment, recording machineDerived form: verb play back1 
- play back, replay - reproduce (a recording) on a recorder; "The lawyers played back the conversation to show that their client was innocent"
 --1 is one way to reproduce
 
 Sample sentence:Derived forms: noun playback1, noun playback2 
 Somebody ----s something