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

The district also said that Beyer has made additional counseling and support services available to student-athletes and that students and staff undergo annual training intended to prevent harassment. — Sacbee.com, 3 Nov. 2026

The recovered materials can then undergo further processing by project partners for applications across several industries. — Neetika Walter, Interesting Engineering, 3 Nov. 2026

The winking pup had escaped from his new home in San Francisco days after undergoing surgery — being neutered and having his right eye removed — and his adoption from an East Bay organization. — Iris Kwok, Los Angeles Times, 3 Nov. 2026

Gillan’s hospitalization came just weeks after former Deep Purple bassist/vocalist Glenn Hughes underwent 10-hour open-heart surgery. — Gil Kaufman, Billboard, 3 Nov. 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