| 1. | the overhead interior surface of a room. |
| 2. | the top limit imposed by law on the amount of money that can be charged or spent or the quantity of goods that can be produced or sold. |
| 3. | Aeronautics.
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| 4. | Meteorology. the height above ground level of the lowest layer of clouds that cover more than half of the sky. |
| 5. | a lining applied for structural reasons to a framework, esp. in the interior surfaces of a ship or boat. |
| 6. | Also called ceiling piece. Theater. the ceiling or top of an interior set, made of cloth, a flat, or two or more flats hinged together. |
| 7. | the act or work of a person who makes or finishes a ceiling. |
| 8. | vaulting, as in a medieval church. |
| 9. | hit the ceiling, Informal. to become enraged: When he saw the amount of the bill, he hit the ceiling. |
To become extremely angry: “When Corey found out someone had stolen his CD player, he really hit the ceiling.”
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hit the ceiling
and hit the roof
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hit the ceiling
Also, hit the roof. Explode in anger, as in Jane hit the ceiling when she saw her grades, or Dad hit the roof when he didn't get his usual bonus. The first expression dates from the early 1900s; the second is a version of a 16th-century locution, up in the house roof or house-top, meaning "enraged."