1
- a roof in the form of an arch or a series of arches, typical of churches and other large, formal buildings拱顶（尤指教堂或正式建筑物拱顶）。
1.1
- poetic/literary a thing resembling an arched roof, especially the sky〈诗/文〉穹状覆盖物（尤指天空）：
the vault of heaven.
苍穹。
1.2
- Anatomy the arched roof of a cavity, especially that of the skull【解】穹隆（尤指头盖骨）：
the cranial vault.
颅顶。
2
- a large room or chamber used for storage, especially an underground one.窖; 地下室。
2.1
- a secure room in a bank in which valuables are stored（银行）保险库; 金库。
2.2
- a chamber beneath a church or in a graveyard used for burials（教堂或墓地）地下室; 墓穴。
with obj.［usu. as adj. vaulted］
1- provide (a building or room) with an arched roof or roofs给…盖拱顶：
a vaulted arcade.
拱廊。
1.1
- make (a roof) in the form of a vault使（屋顶）成穹状：
there was a high ceiling, vaulted with cut slate.
有高耸的天花板, 用切割石板砌成拱形。
词源
Middle English: from Old French voute, based on Latin volvere 'to roll'.
no obj, with adverbial of direction
1- leap or spring while supporting or propelling oneself with one or both hands or with the help of a pole用手（或杆）支撑跳跃：
he vaulted over the gate.
他用手一撑, 跃过大门。
1.1
- with obj. jump over (an obstacle) in such a way用手支撑跃过; 撑杆跃过; 腾跃：
Ryker vaulted the barrier.
里克跃过障碍物。
- an act of vaulting撑手跳跃, 撑杆跳, 腾跃。
派生词
vaulter
noun词源
mid 16th cent.: from Old French volter 'to turn (a horse), gambol', based on Latin volvere 'to roll'.