retighten
verb
re·tight·en (ˌ)rē-ˈtī-tᵊn 
retightened; retightening
transitive verb
: to make (something) tight or tighter again
Retighten the screws.
He retightened his belt/grip.
Word History
First Known Use
1749, in the meaning defined above
- keep after
- keep ahead of the field
- keep an eagle eye on
- keep an eye on
- keep an eye out for
- keep apace with
- keep at
- keep at a distance
- keep at arm's length
- keep at it
- keep back
- keep bad company
- keep body and soul together
- keep clear of
- keep close to one's chest
- keep close to the vest
- keep company
- keep company (with)
- keep company with
- keep cool
- keep count
- keep dangling
- keep down
- keep faith with
- keep from