n.

1. 统治；支配[U]
   The reign of a wise ruler benefits his country.

   贤明统治者的统治有益于他的国家。

2. 在位期间，统治时期[C]
   The American Revolution took place during the reign of George III.

   美国独立战争发生在英王乔治三世统治时期。

vi.

1. 君临；统治[（+over）]
   He reigned over the country for ten years.

   他统治这个国家达十年。

2. 支配；盛行，占优势
   Silence reigned everywhere.

   到处一片寂静。

v.

1. rule as monarch.
2. [as adj. reigning] (of a sports player or team) currently holding a particular title.
3. prevail:
   confusion reigned.

n.

1. the period of rule of a monarch.
2. the period during which someone or something is predominant or pre-eminent.