noun, abbreviation, place name, idiom, numeral, pronoun · a sovereign state, nation, or political entity

他为了保卫祖国，毅然参加了军队。

noun · nation or country

国与国之间应当平等相待。

noun, place word · relating to or representing a specific nation, often used as a prefix in compound words

我们要爱护国旗。

proper name · surname Guo

国先生是位很有名望的学者。