Definition Of altitude
the height of an object or point in relation to sea level or ground level.
flight data including airspeed and altitude
Example Of altitude
A scale along the staff showed the altitude , or angle above the horizon, of the body.
Air at very high altitude smells completely different to lower altitudes .
Also, on any given day the Sun circles the sky at the same apparent altitude .
Apparently, the altimeters built into some Casio watches can be modified to detonate bombs at certain altitudes .
At high altitudes , the thin air makes it hard to breathe unless the cabin is pressurized.