/vɔ:lt ||; vɔlt/noun[C] 1 a room with a strong door and thick walls in a bank, etc that is used for keeping money and other valuable things safe （银行等的）保险库，金库
2 a room under a church where dead people are buried （教堂的）地下墓室: a family vault 家族墓室
3 a high roof or ceiling in a church, etc, made from a number of arches joined together at the top （教堂等的）拱顶