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

Their findings were published Thursday as a preprint on bioRxiv, meaning the research has not yet undergone peer review. — Greg Wehner, FOXNews.com, 3 July 2026

Berner admitted that she's dabbled in some of the trends, including light therapy, but hasn't undergone a laser treatment yet. — Catherine Santino, PEOPLE, 3 July 2026

The Cambridge, Ontario, startup has already built eight MH3 prototypes, which are currently undergoing testing and validation. — Jijo Malayil, Interesting Engineering, 3 July 2026

Since then, the franchise has undergone various changes, including adding players such as Jimmy Butler, James Harden and George in recent years in an attempt to build around Embiid, to no avail. — Tim Casey, Forbes.com, 2 July 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