A distressing or dangerous situation.
He was in trouble when the rain started.
A difficulty, problem, condition, or action contributing to such a situation.
The trouble was a leaking brake line. The trouble with that suggestion is that we lack the funds to put it in motion. The bridge column magnified the trouble with a slight tilt in the wrong direction.
A violent occurrence or event.
the troubles in Northern Ireland
Efforts taken or expended, typically beyond the normal required.
It's no trouble for me to edit it.
A malfunction.
He's been in hospital with some heart trouble. My old car has engine trouble.
Liability to punishment; conflict with authority.
He had some trouble with the law.
A fault or interruption in a stratum.
To disturb, stir up, agitate (a medium, especially water).
To mentally distress; to cause (someone) to be anxious or perplexed.
What she said about narcissism is troubling me.
In weaker sense: to bother or inconvenience.
I will not trouble you to deliver the letter.
To take pains to do something.
I won't trouble to post the letter today; I can do it tomorrow.
To worry; to be anxious.
(Australian rhyming slang) Wife.