mental or emotional disturbance or distress; worry: Trouble and woe were her lot in life.
an instance of this: some secret trouble weighing on his mind; a mother who shares all her children's troubles.
effort, exertion, or pains in doing something; inconvenience endured in accomplishing some action, deed, etc.: The results were worth the trouble it took.
an objectionable feature; problem; drawback: The trouble with your proposal is that it would be too costly to implement.
something or someone that is a cause or source of disturbance, distress, annoyance, etc.
a personal habit or trait that is a disadvantage or a cause of mental distress: His greatest trouble is oversensitivity.
the violence and civil war in Ireland, 1920–22.
the conflict between Protestants and Catholics in Northern Ireland, beginning in 1969.