altitude

n. height, distance above sea level

For other uses see Altitude (disambiguation) Altitude is the elevation of an object from a known level or datum (plural: data). Common data are mean sea level and the surface of the WGS-84 geoid, used by GPS. In aviation, altitude is measured in feet. For non-aviation uses, altitude may be measured in other units such as metres or miles.
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Noun
1. elevation especially above sea level or above the earth's surface; "the altitude gave her a headache"
(synonym) height
(hypernym) elevation
(hyponym) level
2. the perpendicular distance from the base of a geometric figure to opposite vertex (or side if parallel)
(hypernym) distance, length
3. angular distance above the horizon (especially of a celestial object)
(synonym) elevation, EL, ALT
(hypernym) angular position

n. altitude; height; elevation

n. altitude, height; level, inch