Meaning of “question” - Learner’s Dictionary

question

verb [ T ] uk us /ˈkwestʃən/
ASK QUESTIONS

B2 to ask someone questions:

Detectives were questioning a boy about the murder.
[ often passive ] Two out of three people questioned in the survey were non-smokers.
DOUBT

B2 to show or feel doubt about something:

I'm not for a moment questioning your decision.
[ + question word ] I'm just questioning whether we need the extra staff.

(Definition of “question verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)