Height is the measure of vertical
distance, but has two meanings in common use. It can either indicate how "tall" something is, or how "high up" it is. For example "The height of the building is 50 m" or "The height of the airplane is 10,000 m". When used to describe how high something like an
airplane or
mountain peak is from
sea level, height is more often called
altitude. Height is measured along the vertical (y) axis between a specified point and another .