[1] : WordNet (r) 2.0

catch up with
     v 1: catch up with and possibly overtake; "the rolls royce caught
          us near the exit ramp" syn: overtake, catch
     2: make up work that was missed due to absence at a later
        point; "i have to make up a french exam"; "can i catch up
        with the material or is it too late?" syn: make up
see also:
overtake catch make up 

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