shake-up

1 of 2

noun

ˈshāk-ˌəp 

: an act or instance of shaking up

specifically : an extensive and often drastic reorganization

shake up

2 of 2

verb

shook up; shaken up; shaking up; shakes up

transitive verb

1

obsolete : chide, scold

2

: to jar by or as if by a physical shock

the collision shook up both drivers

3

: to effect an extensive and often drastic reorganization of

Synonyms of shake-up

Verb

• shock
• appall
• stun

Examples of shake-up in a Sentence

Verb

the news that we had failed the auto inspection shook us up

Recent Examples on the Web

Noun

The debate turns on a few critical questions — whether testing is reliable enough to replace universal safeguards, how infectious hepatitis B truly is, why past strategies failed, and what the CDC's internal shake-ups mean for vaccine policy writ large. —Dr. Céline Gounder, CBS News, 12 Dec. 2025

See, while this Earth sign normally prefers comfort and consistency, having Uranus in its Fixed territory since 2018 has pushed for breakthroughs, shake-ups and liberation from stagnant routines and creature comforts keeping us small. —Valerie Mesa, PEOPLE, 9 Dec. 2025

Verb

Sam Altman wouldn’t be the first tech mogul to try to shake up Tinseltown with a radical new product or business model, and a Disney partnership feels like a major inroad. —Eric Vilas-Boas, Vulture, 11 Dec. 2025

How progressives are shaking up the Democratic party. —Phaedra Trethan, USA Today, 10 Dec. 2025

Word History

First Known Use

Noun

1847, in the meaning defined above

Verb

1538, in the meaning defined at sense 1

Rhymes for shake-up

• buttercup
• backup
• blowup
• breakup
• buildup
• checkup
• cleanup
• holdup
• hookup
• lineup
• lockup
• makeup

Kids Definition

shake-up

1 of 2 noun

ˈshā-ˌkəp

: an act or instance of shaking up

especially : a reorganization that has extreme effects

lost their jobs in an office shake-up

shake up

2 of 2 verb

(ˈ)shā-ˈkəp

1

: to jar by or as if by a physical shock

the accident shook up both drivers

the news shook us up

2

: to bring about an extensive reorganization of