What ¹

Definition: As an interrogative pronoun, used in asking questions regarding either persons or things; as, what is this? what did you say? what poem is this? what child is lost?

What ²

Definition: As an exclamatory word: (a) Used absolutely or independently; often with a question following.

What ³

Definition: Used adjectively, meaning how remarkable, or how great; as, what folly! what eloquence! what courage!

What ⁴

Definition: Sometimes prefixed to adjectives in an adverbial sense, as nearly equivalent to how; as, what happy boys!

What ⁵

Definition: As a relative pronoun

What ⁶

Definition: Used substantively with the antecedent suppressed, equivalent to that which, or those [persons] who, or those [things] which; called a compound relative.

What ⁷

Definition: Used adjectively, equivalent to the which; the sort or kind of which; rarely, the on, or at, which.

What ⁸

Definition: Used adverbially in a sense corresponding to the adjectival use; as, he picked what good fruit he saw.

What ⁹

Definition: Whatever; whatsoever; what thing soever; used indefinitely.

What ¹⁰

Definition: Used adverbially, in part; partly; somewhat; with a following preposition, especially, with, and commonly with repetition.

What ¹¹

Definition: Something; thing; stuff.

What ¹²

Definition: Why? For what purpose? On what account?