(colloquial) What did you just say? / Used other than figuratively or idiomatically: see what, was, that.

What about; used to ask someone to consider something or someone that they have apparently not considered.

(rare) Because of, due to.

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

Alternative spelling of whatnot

What is. / What has. / What does.

(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.

(interrogative) Which, especially which of an open-ended set of possibilities. / (relative) Which; the ... that. / (relative) Any ... that; all ... that; whatever.

(interrogative) Which thing, event, circumstance, etc.: used in asking for the specification of an identity, quantity, quality, etc. / (fused relative) That which; those that; the thing(s) that.