A fire which occurs in or escapes to a place not anticipated, e.g., a fire in a fireplace becomes uncontrollable and ignites something externally. See Friendly Fire.
A fire that produces a visible spark, flame, or glow and leaves the area in which it was intended to be kept.
A fire occurring where it is not supposed to be, as distinguished from a friendly fire which occurs in its proper place, such as in a stove or a fireplace. Fire insurance policies do not insure losses caused by friendly fires.