1.C 君主，国王，女王　a ruler such as a king or queen
2.C 旧时价值为一镑的英国金币 a former British gold coin worth ￡1

　King George was the sovereign of England.　乔治王曾是英国的君主。
　The gold sovereign has become a rare coin nowadays.　金镑今天已成为稀有硬币。

1.控制国家的；统治的　in control of a country;ruling
2.独立自主的　(of a country) in dependent and self-governing

　The queen has sovereign power.　女王握有统治权。
　For a brief time Texas was a sovereign nation.　得克萨斯一度是个主权独立的国家。