Cool MateFor what vs Why
When to use each in English, with meaning, register, and examples.
For what
Beyond 10,000 (less common)
Why
High-frequency chunkA1adverb
Most common: Why
| For what | Why | |
|---|---|---|
| Pronunciation | 🇬🇧 //fɔː wɒt//🇺🇸 //fɔr wʌt// | 🇬🇧 /["/waɪ/"]/🇺🇸 /["/waɪ/"]/ |
| Meaning | A phrase used to ask about the purpose or reason for something. | A word used to ask for a reason or explanation. |
| Example | He asked me for what I needed the money. | I asked her why she was late. |
| Register | Neutral | Neutral |
| How common | Beyond 10,000 (less common) | High-frequency chunk |
| CEFR level | - | A1 |
| Part of speech | adverb | |
| Collocations | for what purpose, for what reason, for what benefit | ask why, wonder why, no reason why |
| Antonyms | - | because, therefore, so |
| Common mistakes | Use inappropriately in formal contexts where specific questions are preferred., Confuse with 'What for?' which is less clear for some learners. | Omitting 'why' in a question that needs it., Using 'why' in a statement instead of a question., Confusing it with 'when' or 'how'. |
| Usage notes | Use this phrase in conversations to inquire about reasons or purposes. It's suitable for everyday dialogue but may be less common in formal writing. | Used to inquire about reasons. Generally suitable for most contexts, but avoid in very formal writing. Often starts a question. |
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Frequently asked questions: For what vs Why
What's the difference between For what and Why?
For what: A phrase used to ask about the purpose or reason for something. Why: A word used to ask for a reason or explanation.
Which is more common: For what and Why?
Why is the most common in everyday English.
Can you show an example of each?
For what: He asked me for what I needed the money. Why: I asked her why she was late.
Can I use For what and Why interchangeably?
Not always. For what and Why are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.