upend

verb

up·​end ˌəp-ˈend 

upended; upending; upends

transitive verb

1

: to set or stand on end

also : overturn sense 1

upended the bucket to use as a stool

2

a

: to affect to the point of being upset or flurried

… a … literary shocker, designed to upend the credulous matrons …

—Wolcott Gibbs

b

: defeat, beat

intransitive verb

: to rise on an end

Synonyms of upend

• defeat
• overcome
• master
• take
• beat
• worst
• conquer
• get
• best
• stop

Examples of upend in a Sentence

He upended the bicycle to fix its flat tire.

I upended the bucket to use as a stool.

The security inspector upended my bag and dumped everything out.

A giant wave upended the surfers.

The midfielder was upended before he got the ball.

Recent Examples on the Web

Artificial intelligence will upend the century-old assumptions governing legal education and firm business models. —Joseph Andrew, Forbes.com, 19 June 2026

When Yumeko, played by Martineau, a mysterious transfer student arrives, her gambling prowess puts her in the crosshairs of the powerful Student Council, while her secret quest for revenge threatens to upend the school’s status quo entirely. —Peter White, Deadline, 18 June 2026

New evidence published today in the journal Science upends decades of evolutionary theory about when animals first walked on land. —Sarah Durn, Popular Science, 18 June 2026

Trump has persistently called for the Fed to cut rates, but the Iran war has upended energy markets, with gasoline prices surging and electricity costs in the US expected to reach a record this summer, pushing inflation to a three-year high. —Jeronimo Gonzalez, semafor.com, 17 June 2026

Word History

First Known Use

1823, in the meaning defined at transitive sense 1

Rhymes for upend

• amend
• append
• ascend
• attend
• backend
• befriend
• boyfriend
• commend
• compend
• contend
• defend
• depend

Kids Definition

upend

verb

up·​end ˌə-ˈpend 

: to set, stand, or rise on end