undergo

verb

un·​der·​go ˌən-dər-ˈgō 

underwent ˌən-dər-ˈwent  ; undergone ˌən-dər-ˈgȯn 

also -ˈgän

; undergoing ˌən-dər-ˈgō-iŋ 

-ˈgȯ(-)iŋ

; undergoes

ˌən-dər-ˈgōz

transitive verb

1

: to submit to : endure

2

: to go through : experience

undergo a transformation

3

obsolete : undertake

4

obsolete : to partake of

Synonyms of undergo

• endure
• experience
• have
• see

Examples of undergo in a Sentence

She will have to undergo an operation.

some people undergo a complete transformation while away at college

Recent Examples on the Web

An orthopedic surgeon attested to the court the woman was hospitalized after the incident and later underwent a spinal procedure. —Elizabeth Wolfe, CNN Money, 3 Mar. 2026

After initial theoretical assessments and successful laboratory trials, AEON underwent its first test deployment at the BMW Group Plant Leipzig in December 2025. —Jijo Malayil, Interesting Engineering, 2 Mar. 2026

Paramount had already undergone waves of layoffs leading up to and after its acquisition by Skydance. —Jill Goldsmith, Deadline, 2 Mar. 2026

Walcott, the club’s top prospect, underwent an internal brace procedure in his elbow last week and isn’t expected to play in a game until August at the earliest. —Shawn McFarland, Dallas Morning News, 2 Mar. 2026

Word History

First Known Use

14th century, in the meaning defined at sense 1

Rhymes for undergo

• afterglow
• akimbo
• albino
• aliquot
• allegro
• amigo
• apropos
• audio
• bungalow
• calico
• calypso
• cameo

Kids Definition

undergo

verb

un·​der·​go ˌən-dər-ˈgō 

underwent

-ˈwent

; undergone -ˈgȯn 

also -ˈgän

; undergoing -ˈgō-iŋ 

1

: endure sense 2

undergo an operation

2

: to pass through : experience

undergoing a change