a type of arch that supports a roof or ceiling, especially in a church or public building, or a ceiling or roof supported by several of these arches（尤指教堂或公共建筑的）拱顶，穹顶

UK also vaults a room, especially in a bank, with thick walls and a strong door, used to store money or valuable things in safe conditions（尤指银行的）金库，保险库

a room under a church or a small building in a cemetery where dead bodies are buried（教堂的）地下墓室；（墓地的）墓穴

[ I usually + adv/prep, T ] to jump over something by first putting your hands on it or by using a pole（用手支撑或撑杆）跳跃，跃过

[ T ] formal to move someone or something suddenly to a much more important position突然提升；使跃居