Definition of "play up" in English

Verb

1. Used other than figuratively or idiomatically: see play,‎ up.

   • Our school team is playing up at the old recreation ground.

2. To misbehave.

   • Children who do not receive enough attention may begin to play up.
   • The radar system is playing up again.

3. To make or attempt to make something appear more important, likely, or obvious; to showcase or highlight.

   • For the audition, Nicole will play up her skill as a pianist by playing Jesu, Joy of Man's Desiring by Bach.

4. To play (e.g. sport or music) more vigorously.

   • I can't hear the ukuleles at the back. Play up please!

5. To be unfaithful to a lover; to cheat; used with on.