1 reign (over sb/sth) (used about a king or queen) to rule a country （指国王或女王）统治，当政 (figurative 比喻) the reigning world champion 目前的世界冠军

2 reign (over sb/sth) to be in charge of a business or an organization 主管（企业或组织）

3 to be present as the most important quality of a particular situation 支配；占重要位置: Chaos reigned after the first snow of the winter. 冬季初雪后，到处一片混乱。 ➔reign noun [C]