Built with vaults — that is, with curved stone or brick ceilings shaped like the inside of an arch, often several arches joined together. You use it about ceilings and roofs: a vaulted ceiling, a vaulted roof, a vaulted hall. Think of an old church, a castle, a cathedral, a wine cellar under a big house — the ceiling goes up and curves over your head instead of being flat.

Built with vaults用vault拱頂造的 — that is也就是, with curved stone or brick ceilings shaped like the inside of an arch用彎曲的石頭或磚頭做成、形狀像拱門內側的天花板, often several arches joined together常常是好幾個拱連在一起。You use it about ceilings and roofs這個字用在天花板和屋頂上: a vaulted ceiling拱形天花板, a vaulted roof拱形屋頂, a vaulted hall拱頂大廳。Think of an old church, a castle, a cathedral, a wine cellar under a big house想像一座老教堂、一座城堡、一座大教堂、一棟大房子底下的酒窖 — the ceiling goes up and curves over your head instead of being flat天花板往上拱起、彎過你的頭頂，而不是平的。

Two feelings come with the word: old and grand. Because vaulting was a way to build big stone roofs before modern steel, the word carries the smell of history, and writers reach for it when they want a place to feel serious and impressive.

Two feelings come with the word這個字帶著兩種感覺: old and grand古老和氣派。Because vaulting was a way to build big stone roofs before modern steel因為在現代鋼鐵出現以前vaulting拱頂建築是建造大型石頭屋頂的方法, the word carries the smell of history這個字帶著歷史的味道, and而 writers reach for it when they want a place to feel serious and impressive作家想讓一個地方顯得莊嚴又氣派時就會用上它。

But modern builders and estate agents also use it loosely, for any ceiling that rises high and slopes up to a point in the middle, even when there is no real arch at all — a wooden A-shaped roof over a living room gets called "vaulted" all the time. That looser use is now normal in house adverts, so don't correct anyone about it.

But modern builders and estate agents also use it loosely但現代的建商和房仲也會比較鬆散地使用它, for any ceiling that rises high and slopes up to a point in the middle只要天花板挑高、中間斜斜地拱起來就算, even when there is no real arch at all即使完全沒有真正的拱結構 — a wooden A-shaped roof over a living room gets called "vaulted" all the time客廳上方那種木頭A字形屋頂也常常被叫做『vaulted』。That looser use is now normal in house adverts這種比較鬆散的用法現在在房屋廣告裡很常見, so所以 don't correct anyone about it不用去糾正別人。

This is nearly always used before the noun (a vaulted ceiling); you would rarely say "the ceiling is vaulted" in speech, though it is fine in writing.

This is nearly always used before the noun這個字幾乎都用在名詞前面 (a vaulted ceiling拱形天花板); you would rarely say "the ceiling is vaulted" in speech口語裡很少會說『天花板是拱形的』, though it is fine in writing不過寫作裡是可以的。

Separately, the same spelling is the past form of the verb vault (to jump over something with your hands or a pole) — same origin, quite different meaning, and only context tells you which one you are reading.

Separately另外, the same spelling is the past form of the verb vault同樣的拼法也是動詞vault（用手或撐竿跳過某樣東西）的過去式 (to jump over something with your hands or a pole) — same origin同一個字源, quite different meaning意思卻完全不同, and而 only context tells you which one you are reading只能靠上下文判斷你讀到的是哪一個。