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Synonyms

button up

British  

verb

  1. to fasten (a garment) with a button or buttons

  2. informal to conclude (business) satisfactorily

  3. slang taciturn; silent and somewhat tense

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

button up Idioms  
  1. Close securely, fasten, as in The house was all buttoned up , or Button up your coat—it's very cold . [Late 1500s]

  2. Also, button one's lip . Hold one's tongue, keep quiet. For example, Please button your lip about the surprise . A variant of this usage, button one's mouth , dates from the 17th century. [Mid-1800s]

  3. Finish successfully, as in I've got this report all buttoned up . [c. 1940]


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"With the overtake mode, the driver behind can use the boost button up to I think 330km/h, where the guy in the front can only use it to 290km/h," Russell said.

From BBC Mar. 14, 2026

“It was never particularly clear what constitutional theory undergirded the oath of office charges. I suspect the DA’s office will button up their theory and go back to the grand jury.”

From Salon Mar. 13, 2024

Grant started the class by teaching participants how to button up a shirt.

From Los Angeles Times Oct. 19, 2023

Bratt’s team began to button up witness accounts and stress-test factual evidence against the law.

From Washington Post Mar. 1, 2023

His belly was large; it must have been a struggle to button up his shirt.

From "Americanah" by Chimamanda Ngozi Adichie

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