ceiling
verb
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To cover the top of a room with something like plaster or wood.
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To make something go higher, like setting a limit.
noun
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The top inside part of a room that covers it.
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The highest point that something can reach, like how high a plane can fly.
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The highest number you can round up to, like if you have 4.5, the ceiling is 5.
Word Explanation:
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The ceiling is the flat surface that covers the top of a room. It keeps the room safe and helps keep the heat in.