What does "why" mean?
Reason.
Why
/wæ/ adv, intj, noun, verb
adv, intj, noun, verb ·Common ·High school level
Meaning at a glance
- Primary sense: Reason.
- Grammar: why is listed as adv, intj, noun, verb.
- Nearest alternatives: wherefore, argument, baffling problem, brain twister.
- Useful contrasts: because, certainly, consequence.
- Usage evidence: Thanks for having explained to me at last why people take me for an idiot.
How to use "why"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "why" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "why" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "why" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "why" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "why" is acting as adv, intj, noun, verb in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "wherefore" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "why", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 Reason.
"A good article will cover the who, the what, the when, the where, the why and the how."
- 2 A young heifer. Yorkshire, obsolete
"At two years old, also, the HEIFERS - provincially, “whies,” are generally put to the bull."
- 3 Alternative form of wye; the name of the Latin script letter Y/y. alt-of, alternative
"ee, why, ee, ess, eyes"
- 4 the cause or intention underlying an action or situation, especially in the phrase ‘the whys and wherefores’ wordnet
Verb
- 1 To ask (someone) the question "why?". intransitive, transitive
"Why indeed? But once you start whying, there's no end to it."
Adverb
- 1 For what cause, reason, or purpose.; Introducing a complete question. interrogative, not-comparable
"Why is the sky blue?"
- 2 For what cause, reason, or purpose.; Introducing a complete question.; With a negative, used rhetorically to make a suggestion. interrogative, not-comparable
"Why don't you ask her out for dinner?"
- 3 For what cause, reason, or purpose.; Introducing a verb phrase (bare infinitive clause). interrogative, not-comparable
"Why spend money on something you already get for free?"
- 4 For what cause, reason, or purpose.; Introducing a noun or other phrase. interrogative, not-comparable
"Why him? Why not someone taller?"
- 5 For which cause, reason, or purpose. not-comparable, relative
"That's the reason why I did that."
Show 1 more definition
- 6 The cause, reason, or purpose for which. not-comparable
"That is why the sky is blue."
Intj
- 1 An exclamation used to express pleasant or unpleasant mild surprise, indignation, or impatience. dated, literary
"Why, that’s ridiculous!"
Synonyms
All synonymsAntonyms
Example
"Thanks for having explained to me at last why people take me for an idiot."
Common questions
What is a synonym for "why"?
Common synonyms include: wherefore, argument, baffling problem, brain twister, cause, chinese puzzle.
How do you use "why" in a sentence?
Thanks for having explained to me at last why people take me for an idiot.
How do you pronounce "why"?
Pronounced /wæ/.
Etymology
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”). Cognate with Old Saxon hwī (“why”), hwiu (“how; why”), Middle High German wiu (“how, why”), archaic Danish and Norwegian Bokmål hvi (“why”), Norwegian Nynorsk kvi (“why”), Swedish vi (“why”), Faroese and Icelandic hví (“why”), Latin quī (“why”), Doric Greek πεῖ (peî, “where”), Ukrainian чи (čy, “if”), Polish czy, Czech či (“or”), Serbo-Croatian či (“if”). Compare Old English þȳ (“because, since, on that account, therefore, then”, literally “by that, for that”). See thy.