From WordNet (r) 3.0 (2006):
trouble
n 1: a source of difficulty; "one trouble after another delayed
the job"; "what's the problem?" [syn: trouble, problem]
2: an angry disturbance; "he didn't want to make a fuss"; "they
had labor trouble"; "a spot of bother" [syn: fuss,
trouble, bother, hassle]
3: an event causing distress or pain; "what is the trouble?";
"heart trouble"
4: an effort that is inconvenient; "I went to a lot of trouble";
"he won without any trouble"; "had difficulty walking";
"finished the test only with great difficulty" [syn:
trouble, difficulty]
5: a strong feeling of anxiety; "his worry over the prospect of
being fired"; "it is not work but worry that kills"; "he
wanted to die and end his troubles" [syn: worry, trouble]
6: an unwanted pregnancy; "he got several girls in trouble"
v 1: move deeply; "This book upset me"; "A troubling thought"
[syn: disturb, upset, trouble]
2: to cause inconvenience or discomfort to; "Sorry to trouble
you, but..." [syn: trouble, put out, inconvenience,
disoblige, discommode, incommode, bother]
3: disturb in mind or make uneasy or cause to be worried or
alarmed; "She was rather perturbed by the news that her
father was seriously ill" [syn: perturb, unhinge,
disquiet, trouble, cark, distract, disorder]
4: take the trouble to do something; concern oneself; "He did
not trouble to call his mother on her birthday"; "Don't
bother, please" [syn: trouble oneself, trouble, bother,
inconvenience oneself]
5: cause bodily suffering to and make sick or indisposed [syn:
trouble, ail, pain]