(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.

What is the time of day? (used to request for the current hour and approximate number of minutes after the hour)

Used to ask the name of a person.

(idiomatic, colloquial) An intensified version of what? or huh?, expressing surprise or lack of comprehension

Any one of numerous large marine mammals comprising an informal group within infraorder Cetacea that usually excludes dolphins and porpoises. / (by extension) Any species of Cetacea.

(intransitive) To hunt for whales.

(slang, transitive) To thrash, to flog, to beat vigorously or soundly.