(interrogative) In what way; to what extent.

An expression of surprise or disbelief. / What do you want? An abrupt, usually unfriendly enquiry as to what a person desires.

(obsolete, uncountable) Something; thing; stuff. / (countable) The identity of a thing, as an answer to a question of what.

(Manglish, Singlish) Emphasizes the truth of an assertion made to contradict an evidently false assumption held by the listener.

For what purpose. / (colloquial) For what reason; why.

(idiomatic, colloquial, usually with "give someone") An unspecified punishment or rebuke

(idiomatic) So what? Who cares? Expresses disinterest, disregard or lack of concern.

(idiomatic) Owing to; because of; as a result of.

plural of what; used as a stand-in to collectively pluralize arbitrary instances of things. Often used along with whys, hows, etc.

(literally, sometimes philosophical) This thing has its own distinct nature; this thing is itself.