6
crush(verb, close, restrict, crowd, condense)
6
set(verb, hold, change, fix, secure)
5
brace(verb, support, hold, fix, secure)
5
clamp(noun, verb, close, fix, settle)
5
clinch(verb, fix, secure, settle, position)
5
condense(verb, close, change, decline, reduce)
5
flex(verb, move, bend)
5
pucker(verb, draw, gather, squeeze, wrinkle)
5
restrain(verb, contract, narrow, inhibit, compress)
5
tighten up(verb, phrasal verb)
5
trim(change, correct, alter, amend, refine)
5
troubleshoot
4
anchor(verb, hold, fix, secure, settle)
4
boil down(verb, expression, phrasal verb, close, change)
4
circumscribe(contract, narrow, inhibit, compress, contraction)
4
confine(verb, decline, reduce, restrain, diminish)
4
cramp(verb, close, restrict, crowd, contract)
4
extend(verb, go, cover, open, damage)
4
padlock(verb, fix, settle, position, catch)
4
restrict(verb, close, restrain, crowd, contract)
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APASmart Define. (2015). tighten thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/tighten/thesaurus/synonyms
ChicagoSmart Define. 2015. "tighten thesaurus" https://smartdefine.org/tighten/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, tighten thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/tighten/thesaurus/synonyms>.
MLASmart Define. "tighten thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/tighten/thesaurus/synonyms>