altitude

(ălˈtĭ-to͞odˌ, -tyo͞odˌ)

1. The height of a thing above a reference level, especially above sea level or above the earth's surface. See Synonyms at elevation.
2. A high location or area.
3. Astronomy The angular distance of a celestial object above the horizon.
4. Mathematics The perpendicular distance from the base of a geometric figure to the opposite vertex, parallel side, or parallel surface.
5. High position or rank.

Related Forms:

• alˌti·tuˈdi·nal (-to͞odˈn-əl, -tyo͞odˈ-) adjective