We don't have synonyms for tighten up yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are lighten up , brighten up and lighted up .
We don't have any synonyms for tighten up yet.
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Definition of tighten up:
(v) :
(transitive) To make sufficiently tight.
(v) :
(transitive) To fix something or make it correct.
(v) :
(intransitive) To become tense and restrained.
(v) :
(intransitive, transitive) To become stringent and ungenerous.
(v) :
(intransitive) To become focused and serious; To stop any vacillation or inconsistency.
Definition of tighten up:
(v) :
(transitive) To make sufficiently tight.
(v) :
(transitive) To fix something or make it correct.
(v) :
(intransitive) To become tense and restrained.
(v) :
(intransitive, transitive) To become stringent and ungenerous.
(v) :
(intransitive) To become focused and serious; To stop any vacillation or inconsistency.