Injury is a noun with several similar meanings, all involving physical harm or wrongdoing. If you’re not careful, your reckless bike riding could result in a crash that causes injury.

Injury often refers to physical damage, but it can be used more figuratively to describe something that's unjust or that causes harm that isn't physical. For example, your estranged grandfather might do you the injury of leaving you out of his will. The word injury comes from in-, meaning “not,” and the Latin root ius or iur, meaning “right.” So an injury is something that's not right — it's something that has gone wrong that leads to damage.

Definitions of injury
  1. noun
    any physical damage to the body caused by violence or accident or fracture etc.
    synonyms: harm, hurt, trauma
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    brain damage
    injury to the brain that impairs its functions (especially permanently); can be caused by trauma to the head, infection, hemorrhage, inadequate oxygen, genetic abnormality, etc.
    birth trauma
    physical injury to an infant during the birth process
    blast trauma
    injury caused the explosion of a bomb (especially in enclosed spaces)
    bleeding, haemorrhage, hemorrhage
    the flow of blood from a ruptured blood vessel
    blunt trauma
    injury incurred when the human body hits or is hit by a large outside object (as a car)
    bruise, contusion
    an injury that doesn't break the skin but results in some discoloration
    a lump on the body caused by a blow
    an injury caused by exposure to heat or chemicals or radiation
    a displacement of a part (especially a bone) from its normal position (as in the shoulder or the vertebral column)
    electric shock
    trauma caused by the passage of electric current through the body (as from contact with high voltage lines or being struck by lightning); usually involves burns and abnormal heart rhythm and unconsciousness
    break, fracture
    breaking of hard tissue such as bone
    cryopathy, frostbite
    destruction of tissue by freezing and characterized by tingling, blistering and possibly gangrene
    entry of foreign matter into a blood vessel
    penetrating injury, penetrating trauma
    injury incurred when an object (as a knife or bullet or shrapnel) penetrates into the body
    an injury resulting from getting some body part squeezed
    the state of being torn or burst open
    bite, insect bite, sting
    a painful wound caused by the thrust of an insect's stinger into skin
    injury to a muscle (often caused by overuse); results in swelling and pain
    whiplash, whiplash injury
    an injury to the neck (the cervical vertebrae) resulting from rapid acceleration or deceleration (as in an automobile accident)
    wale, weal, welt, wheal
    a raised mark on the skin (as produced by the blow of a whip); characteristic of many allergic reactions
    lesion, wound
    an injury to living tissue (especially an injury involving a cut or break in the skin)
    pull, twist, wrench
    a sharp strain on muscles or ligaments
    raw wound
    a wound that exposes subcutaneous tissue
    marks resembling the wounds on the crucified body of Christ
    abrasion, excoriation, scrape, scratch
    an abraded area where the skin is torn or worn off
    cut, gash, slash, slice
    a wound made by cutting
    a torn ragged wound
    a wound resulting from biting by an animal or a person
    bee sting
    a sting inflicted by a bee
    flea bite
    sting inflicted by a flea
    mosquito bite
    a sting inflicted by a mosquito
    haemorrhagic stroke, hemorrhagic stroke
    stroke caused by the rupture of a blood vessel in the brain
    the purple or black-and-blue area resulting from a bruise
    a minute red or purple spot on the surface of the skin as the result of tiny hemorrhages of blood vessels in the skin (as in typhoid fever)
    black eye, mouse, shiner
    a swollen bruise caused by a blow to the eye
    electric burn
    a burn caused by heat produced by an electric current
    scorch, singe
    a surface burn
    a burn cause by hot liquid or steam
    first-degree burn
    burn causing redness of the skin surface
    second-degree burn
    burn causing blisters on the skin and superficial destruction of the dermis
    third-degree burn
    burn characterized by destruction of both epidermis and dermis
    comminuted fracture
    fracture in which the bone is splintered or crushed
    complete fracture
    break involving the entire width of the bone
    compound fracture, open fracture
    bone fracture associated with lacerated soft tissue or an open wound
    compression fracture
    fracture in which the bone collapses (especially in short bones such as vertebrae)
    depressed fracture
    fracture of the skull where the bone is pushed in
    displaced fracture
    fracture in which the two ends of the broken bone are separated from one another
    fatigue fracture, stress fracture
    fracture resulting from excessive activity rather than a specific injury
    capillary fracture, hairline fracture
    a fracture without separation of the fragments and the line of the break being very thin
    incomplete fracture
    fracture that does not go across the entire width of the bone
    impacted fracture
    fracture in which one broken end is wedged into the other broken end
    closed fracture, simple fracture
    an uncomplicated fracture in which the broken bones to not pierce the skin
    dislocation of a joint
    separation of an epiphysis from the long bone to which it is normally attached without fracture of the bone
    a forward dislocation of one vertebra over the one beneath it producing pressure on spinal nerves
    hernia, herniation
    rupture in smooth muscle tissue through which a bodily structure protrudes
    herniated disc, ruptured intervertebral disc, slipped disc
    a painful rupture of the fibrocartilage of the disc between spinal vertebrae; occurs most often in the lumbar region
    a painful injury to a joint caused by a sudden wrenching of its ligaments
    immersion foot, trench foot
    resembling frostbite but without freezing; resulting from exposure to cold and wet
    cerebral hemorrhage
    bleeding from a ruptured blood vessel in the brain
    blood extravasation
    the leakage of blood from a vessel into tissues surrounding it; can occur in injuries or burns or allergic reactions
    bleeding into the interior chamber of the eye
    bleeding from the uterus that is not due to menstruation; usually indicative of disease (as cervical cancer)
    epistaxis, nosebleed
    bleeding from the nose
    bleeding of the gums
    type of:
    health problem, ill health, unhealthiness
    a state in which you are unable to function normally and without pain
  2. noun
    a casualty to military personnel resulting from combat
    synonyms: combat injury, wound
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    blighty wound
    a wound that would cause an English soldier to be sent home from service abroad
    flesh wound
    a wound that does not damage important internal organs or shatter any bones
    type of:
    loss, personnel casualty
    military personnel lost by death or capture
  3. noun
    an accident that results in physical damage or hurt
    synonyms: accidental injury
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    injury to the brain caused by a blow; usually resulting in loss of consciousness
    an injury that causes disfigurement or that deprives you of a limb or other important body part
    dismemberment, taking apart
    the removal of limbs; being cut to pieces
    type of:
    an unfortunate mishap; especially one causing damage or injury
  4. noun
    an act that causes someone or something to receive physical damage
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    disservice, ill service, ill turn
    an act intended to help that turns out badly
    spoil, spoilage, spoiling
    the act of spoiling something by causing damage to it
    type of:
    actus reus, misconduct, wrongdoing, wrongful conduct
    activity that transgresses moral or civil law
  5. noun
    wrongdoing that violates another's rights and is unjustly inflicted
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    damage, legal injury, wrong
    any harm or injury resulting from a violation of a legal right
    type of:
    actus reus, misconduct, wrongdoing, wrongful conduct
    activity that transgresses moral or civil law
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