Definition of ceilings:
(n) :
The overhead closure of a room.
(n) :
(architecture) The overhead interior surface that covers the upper limits of a room.
(n) :
The upper limit of an object or action.
(n) :
(finance) The maximum permitted level in a financial transaction.
(n) :
(aviation) The highest altitude at which an aircraft can safely maintain flight.
(n) :
(meteorology) The measurement of visible distance from ground or sea level to an overcast cloud cover; under a clear sky, the ceiling measurement is identified as "unlimited."