# tighten up

> English word · Verb

## Definitions
1. To make sufficiently tight.
2. To fix something or make it correct.
3. To become tense and restrained.
4. To become stringent and ungenerous.
5. To become focused and serious; To stop any vacillation or inconsistency.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/tighten-up