altitude

US /ˈæltɪˌtud,-ˌtjud/

UK /'æltɪtju:d/

B2

noun

  • Height of something above sea level
  • The height of an object or place above sea level.

other

  • The height of an aircraft above a reference point, usually sea level.
  • The angular distance of a celestial body above the horizon.
  • The height of an object or point in relation to sea level or ground level.