get back
     v 1: come back to place where one has been before, or return to a
          previous activity [syn: {return}, {go back}, {come back}]
     2: recover something or somebody that appeared to be lost; "We
        got back the money after we threatened to sue the
        company"; "He got back his son from the kidnappers" [syn:
        {win back}]
     3: take revenge or even out a score; "I cannot accept the
        defeat--I want to get even" [syn: {get even}]
     4: get one's revenge for a wrong or an injury; "I finally
        settled with my old enemy" [syn: {settle}]
Source: WordNet® 2.0