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 or chiefly dialectal shook up; shaking up; shakes up

transitive verb

1

: to upset or frighten (someone) by or as if by a physical shock

The collision shook up the drivers of the two cars.

—often used in passive constructions

I was shaken up by the news.

People were very frightened, cold and shook up by it all.

—Luis Freeman, quoted at birminghammail.co.uk

see also shook up entry 1

2

: to effect an extensive and often drastic rearrangement or reorganization of

… a trend that has shaken up the marketing notions of manufacturers …

—Monsanto Magazine

… the detective force was shaken up …

—Allan Nevins

3

obsolete : to denounce or chide (someone) vehemently

Go apart … and thou shalt hear how he will shake me up.

—William Shakespeare

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

Weiss believes the program is in dire need of a shake-up and has to be made more relevant to digital audiences and younger crowds. — Brian Steinberg, Variety, 17 Aug. 2026

The episode goes beyond an internal Kremlin personnel shake-up. — Efrat Lachter, FOXNews.com, 17 Aug. 2026

Verb

The Miami Marlins shook up their bullpen a bit on Sunday, designated for assignment veteran lefty reliever John King and recalling rookie Jack Ralston ahead of their series finale against the Washington Nationals. — Jordan McPherson, Miami Herald, 23 Aug. 2026

Nearly 23 million of those impressions would have been overlooked in the pre-OOH era, and Schroeder himself acknowledged the way the 2020 measurement glow-up has shaken up the Tryptophan Fest. — Anthony Crupi, Sportico.com, 21 Aug. 2026

Word History

First Known Use

Noun

1847, in the meaning defined above

Verb

circa 1556, in the meaning defined at sense 3

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