underwent
/ˌʌn.dəˈwɛnt/
"underwent" is a 9-letter English headword indexed on PlainSpell.
The verdict
“underwent” has 14 generated spelling variants in the English index at frequency #12,162. The variants make it a useful spelling check.
- #12,162
- frequency rank, English
- 23,789
- “U” headwords
- 14
- tracked misspellings
- 1
- confusable pair
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - simple past of undergo
Visual similarity to commonly confused words
How many letter changes separate each confused pair (Levenshtein distance, normalized).
Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).
| Property | Value |
|---|---|
| Headword | underwent |
| Language | English |
| Part of speech | Verb |
| IPA | /ˌʌn.dəˈwɛnt/ |
| Letters | 9 |
| Frequency rank | #12,162 |
| Misspellings tracked | 14 |
| Confusable pairs | 1 |
| Source | Wiktionary (kaikki.org) |
Where “underwent” sits in English frequency
A misspelling magnet
The generator records 14 spelling variants around underwent (IPA /ˌʌn.dəˈwɛnt/), averb. Corpus frequency is #12,162 among 23,789 “U” headwords. Dominant gloss: "simple past of undergo".
Our generated misspelling index lists 14 likely wrong-spelling variants for underwent, with forms such as "nuderwent", "udnerwent", and "undderwent". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "underwear", since the words sound or look close enough that writers reach for the wrong one mid-sentence.
No explicit etymology string is stored for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct English form is underwent, spelled U-N-D-E-R-W-E-N-T.
Definition
- 1simple past of undergo
Common misspellings
Also misspelled as:
- nuderwent
- udnerwent
- undderwent
- underewnt
- underrwent
- underwennt
- underwentt
- underwetn
- underwnet
- underwwent
- undewrent
- undrewent
- unedrwent
- unnderwent
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of underwent - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “underwent”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is U-N-D-E-R-W-E-N-T - every other letter order is a misspelling in standard orthography.
- Say it as /ˌʌn.dəˈwɛnt/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “underwear” - see the side-by-side comparison. underwent vs underwear
- Browse more English words and confusable pairs in the same reference. English words
Same frequency band
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.