1 / vR:lt; vRlt/ n
1 arched roof; series of arches forming a roof 拱券; 拱顶
*fan vaulting, ie vaults wherethe arches have ribs, like a fan 扇形拱券. =>illus at App 1见附录1插图, page viii.
2 (a) cellar or underground room used for storing things at a cool temperature 地窖; 地下室
*`wine-vaults 酒窖.
(b) similar room beneath a church or in a cemetery, used for burials （教堂或坟场的）地下墓室
*in the family vault 在家族的地下墓室中.
3 similar room, esp in a bank and protected by locks, alarms, thick walls, etc, used for keeping valuables safe （设于地下的）金库, 保险库（尤指银行的）.
4 covering like an arched roof 拱券状覆盖物
*(rhet 修辞) the vault of heaven, ie the sky 苍穹（天空）.

/vɔ:lt; vɔlt/
v [I, Ipr] ~ (over sth) jump in asingle movement over or onto an object with the hand(s) resting on it or with the help of a pole （用手或竿支撑）跳跃
*vault (over) a fence 用手支撑跳过篱笆墙
* The jockey vaulted lightly into the saddle. 那骑师用手一按马背轻身跃上了马鞍.
* (fig fml 比喻, 文) vaulting (ie boundless, overreaching) ambition 奢想.

n jump made in this way 撑物跳跃; 撑竿跳.