That vs. What

Attribute	That	What
Definition	Used to indicate a specific thing or person	Used to ask about something unknown or unspecified
Function	Demonstrative pronoun	Interrogative pronoun
Usage	Refers to a specific object or person already mentioned	Asks for information or clarification about something

Definition

Both "that" and "what" are pronouns that are commonly used in the English language. "That" is typically used to indicate a specific thing or person, while "what" is used to ask questions or to introduce a clause that provides more information.

Usage

One key difference between "that" and "what" is their usage in sentences. "That" is often used as a determiner or a pronoun to specify a particular object or person. For example, "I want that book" or "She is the one that won the competition." On the other hand, "what" is used to ask questions or to introduce a clause that provides more information. For example, "What is your name?" or "Tell me what you want."

Function

Another difference between "that" and "what" is their function in a sentence. "That" is often used to introduce a defining clause that provides essential information about the noun it refers to. For example, "The car that I bought last week is red." In this sentence, the clause "that I bought last week" provides essential information about the car. On the other hand, "what" is used to introduce a non-defining clause that provides additional information about the noun it refers to. For example, "I don't know what she wants." In this sentence, the clause "what she wants" provides additional information about the unknown desire of the person.

Clarity

Using "that" and "what" correctly can help improve the clarity of your writing. When used properly, "that" can help specify a particular object or person, making it clear to the reader what you are referring to. On the other hand, "what" can help ask questions or provide additional information, adding depth to your writing. By understanding the differences between "that" and "what," you can ensure that your writing is clear and concise.

Examples

Here are some examples to illustrate the differences between "that" and "what":

• "I want that book." (using "that" to specify a particular object)
• "Tell me what you want." (using "what" to ask a question)
• "The house that Jack built is now for sale." (using "that" to introduce a defining clause)
• "I don't know what she wants." (using "what" to introduce a non-defining clause)

Conclusion

In conclusion, "that" and "what" are both important pronouns in the English language that serve different purposes. While "that" is used to specify a particular object or person and introduce defining clauses, "what" is used to ask questions and introduce non-defining clauses. By understanding the differences between "that" and "what," you can improve the clarity and effectiveness of your writing.