button up
Britishverb
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to fasten (a garment) with a button or buttons
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informal to conclude (business) satisfactorily
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slang taciturn; silent and somewhat tense
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Close securely, fasten, as in The house was all buttoned up , or Button up your coat—it's very cold . [Late 1500s]
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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]
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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.
"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
The button up royal blue tops feature yellow and black piping on the cuffs of the sleeves and around the neck.
From Seattle Times ● Apr. 28, 2023
I put my glass down and grab the remote, clicking the volume button up, up, up.
From "The Girl on the Train" by Paula Hawkins
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
