Pronunciation: /waɪ/

Definitions of why

noun a question word used to ask for a reason or explanation

Example Sentences

A1 Why is the sky blue?

A2 Can you explain why you are late?

B1 I don't understand why she left so suddenly.

B2 The investigation will determine why the accident happened.

C1 Scientists are still researching the reasons why certain diseases occur.

C2 The jury deliberated on why the defendant acted the way he did.

adverb used to ask for what reason or purpose

Example Sentences

A1 Why do you like ice cream?

A2 Can you tell me why you are upset?

B1 I wonder why she didn't come to the party.

B2 I understand why you made that decision.

C1 The reason why he left the company remains unknown.

C2 I question why the project was not completed on time.

Examples of why in a Sentence

formal Can you explain why this decision was made?

informal Do you know why she's always late?

slang Why the heck did you do that?

figurative Sometimes we have to ask ourselves why we keep repeating the same mistakes.

Grammatical Forms of why

past tense

asked

plural

whys

comparative

whys

superlative

whys

present tense

ask

future tense

will ask

perfect tense

have asked

continuous tense

is asking

singular

why

positive degree

why

infinitive

to ask

gerund

asking

participle

asked

Origin and Evolution of why

First Known Use: 0725 year
Language of Origin: Old English
Story behind the word: The word 'why' originated from the Old English word 'hwȳ', which evolved from the Proto-Germanic word 'hwī'.
Evolution of the word: The word 'why' has retained its basic meaning of questioning the reason or cause of something throughout its evolution in various languages.