Guard may refer to: Professional occupations Bodyguard, who protects an individual from personal assault Crossing guard, who stops traffic so pedestrians can cross the street Life guard, who rescues people from drowning Prison guard, who supervises prisoners in a prison or jail Security guard, who protects property, assets, or people Train conductor, in the UK, Australia, and New Zealand Governmental and military Border guard, a state security agency Coast guard, responsible for coastal defen… (More on Guard)