Experience vs Undergo

When to use each in English, with meaning, register, and examples.

Experience

Top 1,000 (very common)A2noun

Undergo

Top 2,000 (common)B2verb
Most common: Experience
 ExperienceUndergo
Pronunciation🇬🇧 /["/ɪkˈspɪəriəns/"]/🇺🇸 /["/ɪkˈspɪriəns/"]/🇬🇧 /["/ˌʌndəˈɡəʊ/","/ˌʌndəˈɡəʊz/","/ˌʌndəˈwent/","/ˌʌndəˈɡɒn/","/ˌʌndəˈɡəʊɪŋ/"]/🇺🇸 /["/ˌʌndərˈɡəʊ/","/ˌʌndərˈɡəʊz/","/ˌʌndərˈwent/","/ˌʌndərˈɡɔːn/","/ˌʌndərˈɡəʊɪŋ/"]/
MeaningWhat you have done or learned in life.to go through something, especially a change or process
ExampleI had an amazing experience at the concert last night.to **undergo tests/trials/repairs**
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelA2B2
Part of speechnounverb
Collocationsconsiderable, extensive, great, have, lack, gain, experience of, a lack of experience, a wealth of experience, past, recent, historical, have, share, learn by, suggest something, teach (somebody) something, show something, by experience, from experience, in somebody’s experience, enjoyable, exhilarating, good, enjoy, go through, have, quite an experienceundergo treatment, undergo changes, undergo a procedure, undergo transformation, undergo testing
Antonymsinexperience, ignoranceavoid, bypass, neglect
Common mistakesConfused with 'experiment' — mixing these words when talking about science., Omitting the object, saying 'I had experience' instead of 'I had an experience.', Using 'experienced' incorrectly as a noun, when it should be an adjective.Confused with 'underwent', which is the past form, Using it without an object, e.g., 'She will undergo.' (missing 'treatment'), Incorrectly assuming it can take a direct object without context
Usage notesUse 'experience' when talking about skills or events in formal and neutral contexts. Avoid in casual slang situations. Can refer to personal or professional activities.Typically used in contexts such as medical procedures or transformations. Avoid using in overly casual conversations.

Frequently asked questions: Experience vs Undergo

What's the difference between Experience and Undergo?

Experience: What you have done or learned in life. Undergo: to go through something, especially a change or process

Which is more common: Experience and Undergo?

Experience is the most common in everyday English.

Are Experience and Undergo the same CEFR level?

Experience: A2, Undergo: B2 on the CEFR scale.

Can I use Experience and Undergo interchangeably?

Not always. Experience and Undergo are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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