Definitions of question:

• noun:   the subject matter at issue

  Example: "The question of disease merits serious discussion"

• noun:   an informal reference to a marriage proposal

  Example: "He was ready to pop the question"

• noun:   an instance of questioning

  Example: "There was a question about my training"

• noun:   a sentence of inquiry that asks for a reply

  Example: "He asked a direct question"

• noun:   a formal proposal for action made to a deliberative assembly for discussion and vote

  Example: "She called for the question"

• noun:   uncertainty about the truth or factuality of existence of something

  Example: "There is no question about the validity of the enterprise"

• verb:   pose a question
• verb:   challenge the accuracy, probity, or propriety of

  Example: "We must question your judgment in this matter"

• verb:   pose a series of questions to

  Example: "The suspect was questioned by the police"

• verb:   conduct an interview in television, newspaper, and radio reporting
• verb:   place in doubt or express doubtful speculation