noun. ['ˈæltəˌtuːd'] elevation especially above sea level or above the earth's surface.
adjective. occurring at a relatively low altitude.
adjective. occurring at or from a relative high altitude.
noun. ['ˈæltəˌtuːd'] the perpendicular distance from the base of a geometric figure to the opposite vertex (or side if parallel).
noun. ['ˈæltəˌtuːd'] angular distance above the horizon (especially of a celestial object).