when
/ˈwɛn/
"when" is a 4-letter English headword indexed on PlainSpell.
The verdict
“when” is in the everyday core of English, ranked #48 in English word frequency and used as an adverb.
- #48
- frequency rank, English
- 4
- letters
- 6
- tracked misspellings
- 20
- confusable pairs
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - At what time? At which time? Upon which occasion or circumstance? Used to introduce direct or indirect questions about time.
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 | when |
| Language | English |
| Part of speech | Adverb |
| IPA | /ˈwɛn/ |
| Letters | 4 |
| Frequency rank | #48 |
| Misspellings tracked | 6 |
| Confusable pairs | 20 |
| Source | Wiktionary (kaikki.org) |
Where “when” sits in English frequency
Spelling & Dictionary Insight
The English entry for when is 4 letters long, classified as an adverb, and transcribed in the International Phonetic Alphabet as /ˈwɛn/. Corpus data places it at rank #48 in overall English word frequency, putting it firmly in the everyday core of the language. Wiktionary records 6 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 6 likely wrong-spelling variants for when, with forms such as "hwen", "wehn", and "whenn". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 20 confusable-pair relationships, "who", "why", "win", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.
Etymologically, the entry records: From Middle English when(ne), whan(ne), from Old English hwonne, from Proto-West Germanic *hwannē, from Proto-West Germanic *hwan, from Proto-Germanic *hwan (“at what time, when”), from Proto-Indo-European *kʷís (interrogative base). Cognate with Scots whan… The correct English form is when, spelled W-H-E-N.
Definition
- 1At what time? At which time? Upon which occasion or circumstance? Used to introduce direct or indirect questions about time.
- 2At what time? At which time? Upon which occasion or circumstance? Used to introduce direct or indirect questions about time.
- 3At an earlier time and under different, usually less favorable, circumstances.
- 4At which, on which, during which: often omitted or replaced with that.
- 5The time at, on or during which.
- 6A circumstance or situation in which.
Etymology
From Middle English when(ne), whan(ne), from Old English hwonne, from Proto-West Germanic *hwannē, from Proto-West Germanic *hwan, from Proto-Germanic *hwan (“at what time, when”), from Proto-Indo-European *kʷís (interrogative base). Cognate with Scots whan (“when”), Dutch wanneer (“when”), wan (“when”) and wen (“when, if”), Low German wannehr (“when”), wann (“when”) and wenn (“if, when”), German wann (“when”) and wenn (“when, if”), Gothic 𐍈𐌰𐌽 (ƕan, “when, how”), Latin quandō (“when”). More at who. Interjection sense: a playful misunderstanding of "say when" (i.e. say something / speak up when you want me to stop) as "say [the word] when".
This word in other languages
Common misspellings
Also misspelled as: hwen,wehn,whenn,whhen,whne,wwhen
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of when - 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 “when”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is W-H-E-N - every other letter order is a misspelling in standard orthography.
- Say it as /ˈwɛn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Don't mix it up with “who” - see the side-by-side comparison. when vs who
- Browse more English words and confusable pairs in the same reference. English words
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.