tidy2 also tidy up past tense and past participle tidied, present participle tidying, third person singular tidies [intransitive and transitive]
Tidy your room!
It's time we tidied up the office.
tidy up after somebody
I'm tired of tidying up after you boys (=tidying somewhere that someone else has made untidy).
tidy something ↔ awayphrasal verb
to put something back in the place where it should be, especially in a cupboard, drawer etc:
Let's tidy these toys away.