Accident
Part of speech: noun
Definition: Literally, a befalling; an event that takes place without one's foresight or expectation; an undesigned, sudden, and unexpected event; often, an undesigned and unforeseen occurrence of an afflictive or unfortunate character A property attached to a word, but not essential to it, as gender, number, case. An unplanned event that results in injury (including death) or occupational illness to person(s) and/or damage to property, exclusive of injury and/or damage caused by action of an enemy or hostile force. A point or mark which may be retained or omitted in a coat of arms A quality or attribute in distinction from the substance, as sweetness, softness. Any accidental property, fact, or relation; an accidental or nonessential Unusual appearance or effect - Geoffrey Chaucer casus; such unforeseen, extraordinary, extraneous interference as is out of the range of ordinary calculation. An unintended collision or event that causes damage or death.
Injury
Part of speech: noun
Definition: Any damage or violation of, the person, character, feelings, rights, property, or interests of an individual; that which injures, or occasions wrong, loss, damage, or detriment; harm; hurt; loss; mischief; wrong; evil; as, his health was impaired by a severe injury; slander is an injury to the character.