tighten up

1. 1.

   severely restrict in scope or extent

   “tighten the rules”

   “stiffen the regulations”

   Synonymsstiffentightenconstrain

   Broaderrestrict

Questions about tighten up

What does tighten up mean?

tighten up means "severely restrict in scope or extent".

What is another word for tighten up?

Close synonyms include stiffen, tighten, constrain. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.