What context can I use each word in?
Learn when and how to use these words with these examples!
what
Example
What is your name? [what: pronoun]
Example
I don't understand what you mean. [what: pronoun]
Example
What a beautiful day! [what: interjection]
that
Example
That book on the shelf is mine. [that: pronoun]
Example
I know that you are busy, but can you help me? [that: conjunction]
Example
I am certain that I left my keys on the table. [that: conjunction]
Good things to know
Which word is more common?
That is more commonly used in formal writing and speech, while what is more commonly used in everyday conversation and informal writing.
What’s the difference in the tone of formality between what and that?
That is generally considered more formal than what and is often used in academic or professional settings. However, both words can be used in formal or informal contexts depending on the situation.
