Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground, or above a given level, or of one object above another; as, the altitude of a mountain, or of a bird above the top of a tree.
- The height of a thing above a reference level, especially above sea level or above the earth's surface. See Synonyms at elevation.
- A high location or area.
- Astronomy The angular distance of a celestial object above the horizon.
- Mathematics The perpendicular distance from the base of a geometric figure to the opposite vertex, parallel side, or parallel surface.
- High position or rank.