#1
altitude n. [
height] elevation especially above sea level or above the earth's surface; "the altitude gave her a headache"
. wn #2
altitude n. the perpendicular distance from the base of a geometric figure to the opposite vertex (or side if parallel)
. wn #3
altitude n. [
elevation, EL, ALT] angular distance above the horizon (especially of a celestial object)
. wn