American-born Chinese or ABC (simplified Chinese: 美国出生华裔; traditional Chinese: 美國出生華裔; pinyin: Měiguó chūshēng huáyì) is a term widely used to refer to natural born American citizens of Chinese descent, excluding first-generation immigrants. It is therefore a sub-category of the term Chinese Americans, the latter of which also includes those who were born in Mainland China, Hong Kong, Macau and Taiwan but naturalized as U.S. citizens.