keep up

/K IY1 P AH1 P/
verb
  1. 1

    To maintain; to preserve; to prevent from deteriorating.

  2. 2

    To continue with (work, etc).

  3. 3

    To stay even or ahead.

    โ€œThey ran so fast I could hardly keep up.โ€

  4. 4

    To ensure that one remains well-informed about something.

    โ€œI always try to keep up with (or "keep up on") current affairs.โ€

Synonyms

Source: https://en.wiktionary.org/wiki/keep%20up