DictionaryaltitudeHeight above a reference level
noun

altitude

AL-tih-tood/ˈæltɪtuːd/

A position measured upward from a reference level.

The coastal mountain's altitude is measured upward from sea level.

A coastal mountain rises beside the sea.
Etymology

The pieces express the quality of being high. Early English use concerned celestial bodies’ elevation above the horizon; the meaning then broadened to height or vertical extent generally.

In context

Xplore Adventure4:55
enabling to ski at a very high altitude almost at 3 600 meters on a vast Glacier even in summer
The 3 biggest massif of french Alps

More examples

  • The plane gains altitude after takeoff.
  • The astronomer records the star's altitude above the horizon.
  • Plants at higher altitudes face colder growing conditions.

Forms

altitude · altitudes

Similar words

height
Broader; can measure from an object's own base.
elevation
Usually concerns vertical distance rather than an angle in the sky.