undergo
verb
un·der·go
ˌən-dər-ˈgō 
underwent
ˌən-dər-ˈwent
; undergone
ˌən-dər-ˈgȯn
; undergone
ˌən-dər-ˈgȯn
also -ˈgän
; undergoing
ˌən-dər-ˈgō-iŋ
-ˈgȯ(-)iŋ
1
: to submit to : endure
2
: to go through : experience
undergo a transformation
3
obsolete
: undertake
4
obsolete
: to partake of
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
She was diagnosed with stage 1 invasive ductal carcinoma and underwent a double mastectomy on July 3, followed by reconstructive surgery, four rounds of chemotherapy and a year of immunotherapy treatment through September 2024.
—
Joanne Fowler, PEOPLE, 18 Sep. 2025
At only a few days old, Billy underwent what would be the first of multiple surgeries to repair his heart.
—Lisa Respers France, CNN Money, 18 Sep. 2025
However, the tech giant has also simultaneously undergone a significant internal transformation, axing more than 15,000 positions—about 7% of the company’s global workforce—since January, making its largest personnel reduction since 2014.
—Rachel Ventresca, Fortune, 18 Sep. 2025
The measure to rescind the finding is undergoing a lengthy regulatory process, which is accepting public comments now.
—Evan Bush, NBC news, 18 Sep. 2025
See All Example Sentences for undergo
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Joanne Fowler, PEOPLE, 18 Sep. 2025
At only a few days old, Billy underwent what would be the first of multiple surgeries to repair his heart.
—Lisa Respers France, CNN Money, 18 Sep. 2025
However, the tech giant has also simultaneously undergone a significant internal transformation, axing more than 15,000 positions—about 7% of the company’s global workforce—since January, making its largest personnel reduction since 2014.
—Rachel Ventresca, Fortune, 18 Sep. 2025
The measure to rescind the finding is undergoing a lengthy regulatory process, which is accepting public comments now.
—Evan Bush, NBC news, 18 Sep. 2025
See All Example Sentences for undergo
Cite this Entry
“Undergo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undergo. Accessed 19 Sep. 2025.
Copy CitationKids Definition
undergo
verb
un·der·go
ˌən-dər-ˈgō
1
: endure sense 2
undergo an operation
2
: to pass through : experience
undergoing a change
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