uncountable additional or special effort that causes you problems or difficultiesit’s no trouble (for someone to do something): It’s no trouble at all for me to get her phone number.
I don’t mind waiting – it’s no trouble.
put someone to a lot of trouble: Sorry we put you to such a lot of trouble.
take the trouble to do something: Thank you for taking the trouble to reply.
take trouble over/with something: She takes a considerable amount of trouble over her appearance.
go to/take a lot of trouble (to do something): He’d gone to a lot of trouble to make the evening go perfectly.
go to the trouble of doing something: Why go to the trouble of washing them by hand?
save someone the trouble of doing something: I’ll do your shopping to save you the trouble of going out.
save yourself trouble: You’ll save yourself a lot of trouble if you choose carefully.
be more trouble than someone/something is worth: Growing roses is more trouble than it is worth.