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  • shake-up
    shake-up
    noun
    a thorough change in a business, department, or the like, as by dismissals, demotions, etc.
  • shake up
    shake up
    verb
    to shake or agitate in order to mix
Synonyms

shake-up

American  
[sheyk-uhp] / ˈʃeɪkˌʌp /

noun

  1. a thorough change in a business, department, or the like, as by dismissals, demotions, etc.


shake up British  

verb

  1. to shake or agitate in order to mix

  2. to reorganize drastically

  3. to stir or rouse

  4. to restore the shape of (a pillow, cushion, etc)

  5. informal to disturb or shock mentally or physically

"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

noun

  1. informal a radical or drastic reorganization

"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
shake up Idioms  
  1. Agitate in order to mix or loosen, as in This cough medicine needs to be thoroughly shaken up , or Please shake up these pillows .

  2. Upset greatly, as in Even though no one was hurt, he was greatly shaken up by the accident . This usage alludes to being agitated like a liquid being shaken. Also see all shook up . [Late 1800s]

  3. Subject to drastic rearrangement or reorganization, as in New management was bent on shaking up each division .


Etymology

Origin of shake-up

First recorded in 1900–05; noun use of verb phrase shake up

Explanation

A shake-up is a major change or upheaval. If there's a shake-up on your soccer team, you might suddenly find yourself playing midfield instead of your usual position defending the goal. Whenever there's reorganization at a company, especially if lots of people lose their jobs, it's described as a shake-up. You can use this word for any similarly drastic change, like a shake-up in your morning routine after your family gets a new puppy that needs to be walked for an hour, or a shake-up in government after a major election.

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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:

There will be a boost for fresh fruit and vegetables and deep-fried food will be banned in what the government has called the biggest shake-up to school dinners in England in over a decade.

From BBC Sep. 13, 2026

Hedges previously hosted the Live Lounge with fellow presenters Rickie Haywood-Williams and Melvin Odoom, who have since left the station as part of a major schedule shake-up.

From BBC Sep. 7, 2026

Plans for a major shake-up of local government are on hold, after the government launched a review in light of new legal advice.

From BBC Sep. 7, 2026

The stakes in Google’s shake-up are high because it has faltered lately in the AI race.

From The Wall Street Journal Aug. 25, 2026

I’m thinking the Forest will get a shake-up some day and I’m willing to bide my time.

From At the Crossroads by Harriet T. (Harriet Theresa) Comstock

After victory in the series opener in Johannesburg last month, the All Blacks jumped to the top of the world rankings and threatened to shake up rugby's world order.

From BBC Sep. 12, 2026

From her London base, she is up by 2 a.m. most days, calling locals and sifting through data to find companies ripe for a shake up.

From The Wall Street Journal Jul. 18, 2026

Micron’s new supply deals and the evolution of HBM could shake up and change the traditional memory cycle, Bryson said.

From MarketWatch Jul. 3, 2026

The forces behind these projects, like DC Studios’ co-chairman and co-CEO James Gunn, might talk about how they hope to shake up the stale genre with bold decisions.

From Salon Jun. 27, 2026

Fuller was prepared to shake up the city, to overthrow the status quo—but the Urban League took a more methodical, “go slow” approach.

From "The Best of Enemies" by Osha Gray Davidson

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