(typography) The punctuation mark "?", used at the end of a sentence to indicate a question. / (figuratively, informal) A state of doubt or uncertainty.

Problematic; open to doubt or challenge. / Of dubious respectability or morality. / (obsolete) Inviting questions; inviting inquiry.

(idiomatic, informal) To propose marriage.

A sentence, phrase or word which asks for information, reply or response; an interrogative. / A subject or topic for consideration or investigation.

(transitive) To ask questions of; to interrogate; to ask for information. / (transitive) To raise doubts about; have doubts about.

(idiomatic) Not remotely possible.

A question posed only for dramatic or persuasive effect. / (colloquial) A question to which the asker does not expect an answer.

(Britain, law) The anomaly whereby Scottish MPs can vote on issues affecting England, but English MPs cannot vote on Scottish issues.

(philosophy, logic, law) To engage in the logical fallacy of begging the question (petitio principii). / To sidestep or fail to address a question. / (sometimes proscribed) To raise or prompt a question.

A logical fallacy in which a premise of an argument contains a direct or indirect assumption that the conclusion is true; offering a circular argument; circular reasoning.