1.Definition: (meteorology) altitude of the lowest layer of clouds

Category: General

2.Definition: 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"

Related Noun(s):cap, roof

Category: General

3.Definition: maximum altitude at which a plane can fly (under specified conditions)

Category: General

4.Definition: the overhead upper surface of a covered space

"He hated painting the ceiling"

Category: Objects