tighten up

phrasal verb

tightened up; tightening up; tightens up
: to become more strict or effective or to make (something) more strict or effective
Security around the building has tightened up recently.
They tightened up security around the building.

Examples of tighten up in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Melton, who had issues with his back all last season, had his mid-back tighten up Tuesday morning, so the team sat him out of caution. Danny Emerman, The Mercury News, 15 Oct. 2024 When Bailey’s side tightened up, Casali was prepared to step in. Andrew Baggarly, The Athletic, 20 Aug. 2024 The Spurs will need to tighten up defensively and find a way to slow down a Knicks team that's firing on all cylinders. Andy Biggs, Newsweek, 25 Dec. 2024 So, her first instinct was to tighten up and be prepared. Danielle Bacher, People.com, 10 Dec. 2024 See all Example Sentences for tighten up 

Dictionary Entries Near tighten up

Cite this Entry

“Tighten up.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tighten%20up. Accessed 8 Jan. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!