"altitudes" in the noun sense
1. altitude, height
elevation especially above sea level or above the earth's surface
"the altitude gave her a headache"
the perpendicular distance from the base of a geometric figure to the opposite vertex (or side if parallel)
3. elevation, EL, altitude, ALT
angular distance above the horizon (especially of a celestial object)
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License