/ ˈsiːlɪŋ; NAmE / noun
1.
the top inside surface of a room :
She lay on her back staring up at the ceiling.
a large room with a high ceiling
2.
the highest limit or amount of sth :
price ceilings
—compare floor
3.
( technical ) the greatest height at which a particular aircraft is able to fly
—see also glass ceiling
•
IDIOMS
see hit verb
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WORD ORIGIN
Middle English (denoting the action of lining the interior of a room with plaster or panelling): from ceil (perhaps related to Latin celare , French céler conceal) + -ing . Sense 1 dates from the mid 16th cent.