Trouble is anything that causes difficulty, worry, and inconvenience, or that prevents you from doing something. If you have trouble getting along with a classmate, it is hard to be friendly with him or her.

Whether you have trouble finding your shoes, you're in trouble with your teacher, or you go to a lot of trouble buying the kind of tea your sister likes, you face an annoying — and possibly distressing — difficulty. When you use trouble as a verb, it tells who or what is making life hard for you, like a headache that troubles you or childhood memories of encounters with scary clowns that probably trouble you even more deeply.

Definitions of trouble
  1. noun
    a source of difficulty
    “one trouble after another delayed the job”
    synonyms: problem
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    pressure point
    where problems or difficulties are likely to occur
    can of worms
    a source of unpredictable trouble and complexity
    deep water
    serious trouble
    growing pains
    problems that arise in enlarging an enterprise (especially in the early stages)
    trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality
    a problem
    type of:
    a factor causing trouble in achieving a positive result or tending to produce a negative result
  2. noun
    an event causing distress or pain
    “what is the trouble?”
    “heart trouble
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    bad luck, misfortune
    unnecessary and unforeseen trouble resulting from an unfortunate event
    a cause of great suffering and distress
    a physical disturbance such as an earthquake or upheaval
    some event that causes someone to be embarrassed
    blaze, hell
    a cause of difficulty and suffering
    a sudden and severe onset of trouble
    outrage, scandal
    a disgraceful event
    disturbance, interference, noise
    electrical or acoustic activity that can disturb communication
    unwanted echoes that interfere with the observation of signals on a radar screen
    pity, shame
    an unfortunate development
    calvary, martyrdom
    any experience that causes intense suffering
    skeleton, skeleton in the closet, skeleton in the cupboard
    a scandal that is kept secret
    misadventure, mischance, mishap
    an instance of misfortune
    calamity, cataclysm, catastrophe, disaster, tragedy
    an event resulting in great loss and misfortune
    a stroke of ill fortune; a calamitous event
    something that causes or entails suffering
    a bad experience
    trial, tribulation, visitation
    an annoying or frustrating or catastrophic event
    curse, torment
    a severe affliction
    background, background signal
    extraneous signals that can be confused with the phenomenon to be observed or measured
    XT, crosstalk
    the presence of an unwanted signal via an accidental coupling
    a gradual temporary loss of a transmitted signal due to electrical disturbances
    small rapid variations in a waveform resulting from fluctuations in the voltage supply or mechanical vibrations or other sources
    atmospheric static, atmospherics, static
    a crackling or hissing noise caused by electrical interference
    white noise
    a noise produced by a stimulus containing all of the audible frequencies of vibration
    a sudden occurrence of an uncontrollable condition
    bane, curse, nemesis, scourge
    something causing misery or death
    type of:
    happening, natural event, occurrence, occurrent
    an event that happens
  3. noun
    an angry disturbance
    “they had labor trouble
    synonyms: bother, fuss, hassle
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    type of:
    disturbance, perturbation
    activity that is a malfunction, intrusion, or interruption
  4. noun
    an effort that is inconvenient
    “I went to a lot of trouble
    “he won without any trouble
    synonyms: difficulty
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    the devil
    something difficult or awkward to do or deal with
    (Yiddish) aggravating trouble
    type of:
    effort, elbow grease, exertion, sweat, travail
    use of physical or mental energy; hard work
  5. verb
    to cause inconvenience or discomfort to
    “Sorry to trouble you, but...”
    synonyms: bother, discommode, disoblige, incommode, inconvenience, put out
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    distress, straiten
    bring into difficulties or distress, especially financial hardship
    type of:
    affect, bear on, bear upon, impact, touch, touch on
    have an effect upon
  6. verb
    take the trouble to do something; concern oneself
    “He did not trouble to call his mother on her birthday”
    synonyms: bother, inconvenience oneself, trouble oneself
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    type of:
    reach, strain, strive
    to exert much effort or energy
  7. verb
    cause bodily suffering to and make sick or indisposed
    synonyms: ail, pain
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    break out, erupt, recrudesce
    become raw or open
    type of:
    give trouble or pain to
  8. noun
    a strong feeling of anxiety
    synonyms: worry
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    type of:
    a vague unpleasant emotion that is experienced in anticipation of some (usually ill-defined) misfortune
  9. verb
    disturb in mind or make uneasy or cause to be worried or alarmed
    synonyms: cark, disorder, disquiet, distract, perturb, unhinge
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    vex, worry
    disturb the peace of mind of; afflict with mental agitation or distress
    suggest fear or doubt
    eat, eat on
    worry or cause anxiety in a persistent way
    worry persistently
    type of:
    disturb, upset
    move deeply
  10. verb
    move deeply
    “A troubling thought”
    synonyms: disturb, upset
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    agitate, charge, charge up, commove, excite, rouse, turn on
    cause to be agitated, excited, or roused
    disturb (someone's) composure
    cark, disorder, disquiet, distract, perturb, unhinge
    disturb in mind or make uneasy or cause to be worried or alarmed
    cause mental pain to
    hype up, psych up
    get excited or stimulated
    vex, worry
    disturb the peace of mind of; afflict with mental agitation or distress
    make nervous or agitated
    cause to feel distressed or worried
    make upset or troubled
    excite suddenly and intensely
    type of:
    affect, impress, move, strike
    have an emotional or cognitive impact upon
  11. noun
    an unwanted pregnancy
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    type of:
    gestation, maternity, pregnancy
    the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus
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