Synonyms of 'altitude'
height, esp. above sea levelThe next day I ran my first race at high altitude.
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in the sense of elevation
height above sea level
We're at an elevation of about 13,000 feet above sea level.
in the sense of peak
the pointed summit of a mountain
the snow-covered peaks of the Alps
Video: pronunciation of 'altitude'
Thesaurus for altitude from the Collins English Thesaurus