tied up

1. 1.

   kept occupied or engaged

   “she's tied up at the moment and can't see you”

   “the phone was tied up for almost an hour”

   Similarbusy

Questions about tied up

What does tied up mean?

tied up means "kept occupied or engaged".

Is tied up a common word?

tied up is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.