what pron

OE hwæt; interrogative and relative pronoun.

  1. Which statement; [interrogative as a request for information.]
  2. Which things; the kinds of things that.
  3. That which; the thing that.
  4. Which.
  5. Such; [intensifier for exclamatory phrases].
  6. Phrase. “What if”: suppose that; who knows the outcome should it be.