Definitions

1. adverb

Used to ask for the reason or explanation of something.

“I asked him why he was late.”

2. noun

A question about the reason or explanation of something.

“She asked the teacher why the test was so difficult.”

3. conjunction

Used to introduce a question about the reason or explanation of something.

“I don’t know why, but the movie was really boring.”

4. interjection

Used to express puzzlement or surprise.

“Why, that’s amazing!”

5. preposition

Indicates the reason or explanation for something.

“She was tired because why she hadn’t gotten enough sleep.”