- problem
- noun (C)
1 DIFFICULTY a situation that causes difficulties: There was rarely any problem in motivating the students to study. | have a problem with: I've been having a few problems with the car. | a drug/crime problem: tough new measures to combat the drug problem | pose a problem: The shortage of trained staff poses a serious problem. | solve a problem: a policy that will solve the unemployment problem—see trouble 12 no problem spokena) used to say that you are very willing to do something: “Could you make the booking in her name?” “Yes, no problem.” | No problem! I'd love to show you around.b) used after someone has said thank you or said that they are sorry: “Thanks so much for all your help.” “Oh, no problem!”3 that's your problem spoken used to tell someone to deal with their own problem or situation by themselves: If you can't get yourself there on time, that's your problem.4 it's/that's not my problem spoken used to say you do not care about a problem someone else has: “Your brother's under a lot of pressure.” “That's not my problem.”5 What's your problem? spoken used to ask someone what is wrong, in a way that is not sympathetic, and shows that you think they are being unreasonable: Look, what's your problem? I've never seen you act like this!6 a problem child/family/drinker etc a child etc who behaves in a way that is difficult for other people to deal with7 Do you have a problem with that? spoken used to ask someone why they oppose you or disagree with you, in a way that shows you think they are wrong8 QUESTION a question, especially one connected with numbers or facts, that must be answered: The teacher gave them 20 mathematical problems.
Longman dictionary of contemporary English. 2004.