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Verb: catch up
  1. Reach the point where one should be after a delay
    "I caught up on my homework"
  2. Learn belatedly; find out about something after it happened
    "I'm trying to catch up with the latest developments in molecular biology"

Derived forms: catching up, caught up, catches up

See also: catch

Type of: acquire, arrive at, attain, gain, hit, larn, learn, make, reach