1 (also capital city) [C] the town or city where the government of a country is 首都: Madrid is the capital of Spain. 马德里是西班牙的首都。

2 [U] an amount of money that you use to start a business or to put in a bank, etc so that you earn more money (interest) on it 资金，资本（可用以赚取利润）: When she had enough capital, she bought a shop. 她等到资金充足的时候，便买下一家商店。

3 (also capital letter) [C] the large form of a letter of the alphabet 大写字母；大写字体: Write your name in capitals. 用大写字母写上你的姓名。

4 [C] a place that is well known for a particular thing 在某方面出名的地方；…之都: Niagara Falls is the honeymoon capital of the world. 尼亚加拉瀑布是世界的蜜月之都。