An example of what used as an adjective is in the sentence, "What shirt do you want?".How greatly, surprisingly, etc.: in exclamations: what tragic news!
«Casebook: Haddawa» 106 (13).What did she say?
(now rare) Used to introduce each of two coordinate phrases or concepts;.As a relative pronoun, with the meaning: that which or those which: to know what one wants anything that: do what you will the exact person or thing that: he's not what he was five years ago that or who: a nonstandard usage: the man.
When the what in the what -clause is the object of the verb and the complement of the main clause is singular, the main verb is always singular: What they wanted was a home of their own; when the complement of the main sentence.What kind of car is that?
Of a thing: what is that object?Pronoun (interrogative) Which thing, event, circumstance, etc.: used interrogatively in asking for the specification of an identity, quantity, quality, etc.One of how much value or significance: What are possessions to a dying man?