Source : Webster's Revised Unabridged Dictionary (1913)

Trouble \Trou"ble\, a.
   Troubled; dark; gloomy. [Obs.] ``With full trouble cheer.''
   --Chaucer.

Trouble \Trou"ble\, n. [F. trouble, OF. troble, truble. See
   {Trouble}, v. t.]
   1. The state of being troubled; disturbance; agitation;
      uneasiness; vexation; calamity.

            Lest the fiend . . . some new trouble raise.
                                                  --Milton.

            Foul whisperings are abroad; unnatural deeds Do
            breed unnatural troubles.             --Shak.

   2. That which gives disturbance, annoyance, or vexation; that
      which afflicts.

   3. (Mining) A fault or interruption in a stratum.

   {To get into trouble}, to get into difficulty or danger.
      [Colloq.]

   {To take the trouble}, to be at the pains; to exert one's
      self; to give one's self inconvenience.

            She never took the trouble to close them. --Bryant.

   Syn: Affliction; disturbance; perplexity; annoyance;
        molestation; vexation; inconvenience; calamity;
        misfortune; adversity; embarrassment; anxiety; sorrow;
        misery.

Trouble \Trou"ble\, v. t. [imp. & p. p. {Troubled}; p. pr. & vb.
   n. {Troubling}.] [F. troubler, OF. trobler, trubler,
   tourbler,fr. (assumed) LL. turbulare, L. turbare to
   disorderly group, a little crowd; both from turba a disorder,
   tumult, crowd; akin to Gr. ?, and perhaps to E. thorp; cf.
   Skr. tvar, tur,o hasten. Cf. {Turbid}.]
   1. To put into confused motion; to disturb; to agitate.

            An angel went down at a certain season into the
            pool, and troubled the water.         --John v. 4.

            God looking forth will trouble all his host.
                                                  --Milton.

   2. To disturb; to perplex; to afflict; to distress; to
      grieve; to fret; to annoy; to vex.

            Now is my soul troubled.              --John xii.
                                                  27.

            Take the boy to you; he so troubles me 'T is past
            enduring.                             --Shak.

            Never trouble yourself about those faults which age
            will cure.                            --Locke.

   3. To give occasion for labor to; -- used in polite
      phraseology; as, I will not trouble you to deliver the
      letter.

   Syn: To disturb; perplex; afflict; distress; grieve; harass;
        annoy; tease; vex; molest.

Source : WordNet®

trouble
     n 1: a source of difficulty; "one trouble after another delayed
          the job"; "what's the problem?" [syn: {problem}]
     2: an angry disturbance; "he didn't want to make a fuss"; "they
        had labor trouble"; "a spot of bother" [syn: {fuss}, {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: {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}]
     6: an unwanted pregnancy; "he got several girls in trouble"

trouble
     v 1: move deeply; "This book upset me"; "A troubling thought"
          [syn: {disturb}, {upset}]
     2: to cause inconvenience or discomfort to; "Sorry to trouble
        you, but..." [syn: {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},
         {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}, {bother}, {inconvenience
        oneself}]
     5: cause bodily suffering to [syn: {afflict}, {ail}, {pain}]