trouble
US /ˈtrʌb.əl/
UK /ˈtrʌb.əl/

1.
difficulty or problems
:
•
He's always getting into trouble.
•
We had some trouble with the car engine.
2.
a cause of difficulty or annoyance
:
•
The children are a lot of trouble today.
•
It's no trouble at all, I'm happy to help.
1.
cause distress or inconvenience to (someone)
:
•
I'm sorry to trouble you, but could you help me?
•
Don't trouble yourself, I can manage.