Ceiling - Definition
ceiling
n 1: the overhead upper surface of a covered space; "he hated
painting the ceiling"
2: (meteorology) altitude of the lowest layer of clouds
3: an upper limit on what is allowed; "he put a ceiling on the
number of women who worked for him"; "there was a roof on
salaries"; "they established a cap for prices" [syn:
ceiling, roof, cap]
4: maximum altitude at which a plane can fly (under specified
conditions)