Meaning of ALTITUDE in English

ALTITUDE

al ‧ ti ‧ tude /ˈæltətjuːd, ˈæltɪtjuːd $ -tuːd/ BrE AmE noun

[ Date: 1300-1400 ; Language: Latin ; Origin: altitudo , from altus 'high, deep' ]

[countable] the height of an object or place above the sea

altitude of

We’re flying at an altitude of 40,000 feet.

high/low altitudes

At high altitudes it is difficult to get enough oxygen.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.