Injury means a harm or hurt to the body of a living thing.

Usually, an injury is when the body or a part of the body is damaged by something outside of the body. Another word for injury to a body is trauma.
Injury can be by:
Injury can be accidental or intentional. In an intentional injury a person tries to hurt another. (Intentional injury is also called non-accidental injury). Accidental injury is without meaning to hurt someone. A traffic collision for example may injure someone accidentally.
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