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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 all about the cool dark shirt, the leather jacket, the black suit button up… I asked myself “how am I gonna be different here and also comfortable?”

From Los Angeles Times ● Jan. 2, 2025

“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

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

From Washington Post ● Mar. 1, 2023

She takes her coat off the back of the chair, puts her arms in the sleeves, and starts to button up.

From "Wintergirls" by Laurie Halse Anderson

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