Nouns

(n)question, inquiry, enquiry, query, interrogationan instance of questioning“there was a question about my training”, “we made inquiries of all those who were present”
(n)question, headthe subject matter at issue“the question of disease merits serious discussion”, “under the head of minor Roman poets”
(n)question, interrogation, interrogative, interrogative sentencea sentence of inquiry that asks for a reply“he asked a direct question”, “he had trouble phrasing his interrogations”
(n)doubt, dubiousness, doubtfulness, questionuncertainty about the truth or factuality or existence of something“the dubiousness of his claim”, “there is no question about the validity of the enterprise”
(n)motion, questiona formal proposal for action made to a deliberative assembly for discussion and vote“he made a motion to adjourn”, “she called for the question”
(n)questionan informal reference to a marriage proposal“he was ready to pop the question”

Verbs

(v)question, oppugn, call into questionchallenge the accuracy, probity, or propriety of“We must question your judgment in this matter”
(v)interrogate, questionpose a series of questions to“The suspect was questioned by the police”, “We questioned the survivor about the details of the explosion”
(v)question, querypose a question
(v)interview, questionconduct an interview in television, newspaper, and radio reporting
(v)wonder, questionplace in doubt or express doubtful speculation“I wonder whether this was the right thing to do”, “she wondered whether it would snow tonight”