ceil·ing 
/ˈsi:lɪŋ/ noun
plural ceil·ings /ˈsi:lɪŋ/ noun [count] 1 : the inside surface at the top of a room
▪ The house has low ceilings. ▪ a plaster ceiling ▪ a ceiling fan [=a fan that hangs from the ceiling of a room] — sometimes used figuratively ▪ a ceiling of stars/clouds — opposite floor 2 : an upper limit — usually singular ▪ a price ceiling ▪ The government has put/set/imposed a ceiling on automobile emissions. ▪ Fuel prices are going through the ceiling. [=fuel prices are quickly getting much higher] — opposite floor; see also glass ceiling 3 technical : the greatest height at which an aircraft can fly
▪ The airplane has a ceiling of 32,000 feet.
▪ The house has low ceilings. ▪ a plaster ceiling ▪ a ceiling fan [=a fan that hangs from the ceiling of a room] — sometimes used figuratively ▪ a ceiling of stars/clouds — opposite floor
▪ The airplane has a ceiling of 32,000 feet.
hit the ceiling — see 1hit
— ceilinged adjective — used in combination ▪ a high-ceilinged room [=a room with a high ceiling]
