Meaning
tighten up is a phrasal verb that means:
- To make something firmer, stricter, or more secure.
- To improve or correct something by making it more precise or efficient.
- (Informal) To become tense, nervous, or less relaxed.
Grammar and Usage
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Verb type: Phrasal verb (transitive & intransitive).
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Patterns:
- tighten up + object → “tighten up the rules”
- tighten up on + noun → “tighten up on spending”
- tighten up (intransitive) → “He tends to tighten up before a performance.”
Common Phrases
- tighten up the rules
- tighten up security
- tighten up spending
- tighten up on procedures
- tighten up muscles
Collocations
- Verb + tighten up: must tighten up, need to tighten up
- Noun + tighten up: tighten up rules, tighten up security, tighten up muscles
- Adverb + tighten up: really tighten up, gradually tighten up
Examples
- The school decided to tighten up the rules on smartphone use.
- We need to tighten up security before the event.
- The government plans to tighten up on spending this year.
- You should tighten up your writing by removing unnecessary words.
- The coach told the players to tighten up their defense.
- He tends to tighten up whenever he speaks in public.
- The editor asked her to tighten up the article before publishing.
- They promised to tighten up procedures after the mistake.
Synonyms or Related
- strengthen
- enforce
- improve
- refine
- correct
- secure
Antonym
- loosen up
- relax
- slacken