1
general::
1. Also get back to. Return to a person, place, or condition. For example, What time will you get back? or I hope he'll get back to the subject of this report. [c. 1600] 2. Recover something, as in When will I get this book back? [c. 1800]
American Heritage Idioms
2
general::
Phrase(s): get back (to someone) (on something)
Fig. to continue talking with someone (at a later time); to find out information and tell it to a person (at a later time). • I don’t have the answer to that question right now. Let me find out and get back to you. • Okay. Please try to get back early tomorrow., Phrase(s): get someone or something back
to receive someone or something back; to recover someone who had been taken away; to recover something that had been taken away. • Beth finally got her car back from the service station. • She got back her car.
McGrawhill's American Idioms And Phrasal Verbs