ceiling

noun

the overhead upper surface of a covered space
部屋の内側の頭上の裏張り
- he hated painting the ceiling
  彼は天井を塗装するのを嫌がった
altitude of the lowest layer of clouds
最も低い雲の層の高度
maximum altitude at which a plane can fly (under specified conditions)
飛行機が飛ぶことができる最大高度（特定条件の下で）
an upper limit on what is allowed
許される最高限度
- he put a ceiling on the number of women who worked for him
  彼は自分に仕える女性の人数に上限を定めた
- there was a roof on salaries
  給料には上限があった
- they established a cap for prices
  彼らは価格の上限を定めた

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