why
/waɪ̯/adverb, noun, interjection, verb
why is spelled W-H-Y: 3 letters and one syllable. It appears 851 times per million words in written English, the 126th most frequent word form (wordfreq, 2021 data). As an adverb, why means “Introducing a complete question” (English Wiktionary, September 2026).
How many letters and syllables are in why?
| Letters | 3: W-H-Y |
|---|---|
| Syllables | 1 |
| In writing | 851 times per million words; the 126th most frequent word form |
| Wrong spellings searched | none measured in search |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is why?
Why appears 851 times per million words in written English, the 126th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce why?
- /waɪ̯/
- [waɪ̯]
- /waː/
Why has one syllable.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-why.ogg, En-uk-why.ogg, En-ne-why.ogg, Wikimedia Commons (author and licence on each file's page).
Words people confuse with why
Also written: wye.
Sources: English Wiktionary (homophones, alternative spellings).
What rhymes with why?
No other word on PlainSpell ends in the same sounds as why.
Spelled with the same letters in another order: hwy.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of why
- whys plural, present, singular, he/she/it
- why's plural
- whies plural, present, singular, he/she/it
- whying participle, present
- whyed participle, past
- whied participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does why mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adverb
- 1
Introducing a complete question.
Why is the sky blue?
- 2
With a negative, used rhetorically to make a suggestion.
Why don't you ask her out for dinner?
- 3
Introducing a verb phrase (bare infinitive clause).
Why spend money on something you already get for free?
- 4
Introducing a noun or other phrase.
Why him? Why not someone taller?
- 5
For which cause, reason, or purpose.
That's the reason why I did that.
- 6
The cause, reason, or purpose for which.
That is why the sky is blue.
noun
- 1
Reason.
A good article will cover the who, the what, the when, the where, the why and the how.
- 2
obsoleteA young heifer.
- 3
Alternative form of wye; the name of the Latin script letter Y/y.
verb
- 1
To ask (someone) the question "why?".
interjection
- 1
datedAn exclamation used to express pleasant or unpleasant mild surprise, indignation, or impatience.
Why, that’s ridiculous!
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you abbreviate why?
Wiktionary records one abbreviation of why: y.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Why in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | pourquoi , ha, oh, ah, eh bien, bah |
| German | warum, wieso, weshalb, weswegen , nanu, na |
| Portuguese | por que, por quê , uai , porquê |
| Spanish | por qué (razón/motivo), a qué son, a son de qué, con qué motivo/razón, en razón de qué, por |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does why come from?
From Middle English why, from Old English hwȳ (“why”), from Proto-Germanic *hwī (“by what, how”), from Proto-Indo-European *kʷey, instrumental case of *kʷís (“who”), *kʷid (“what”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).