tighten up

Verb

Meaning

severely restrict in scope or extent

Source: WordNet

Synonyms

constrain tighten stiffen institute harden order design project plan reduce advantage contract frame advance tense
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Antonyms

continue damage decline drop decrease expand
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Hypernyms

trammel limit bound restrict throttle confine

Examples

tighten the rules Source: Internet

stiffen the regulations Source: Internet

Close letter words and terms

tighten down tighten one's belt tighten the purse strings tighten your belt tightenable tightener