Pe̍h-ōe-jī

Pe̍h-ōe-jī (pronounced [peʔ˩ ue˩ dzi˨], abbreviated POJ, literally vernacular writing, also known as Church Romanization) is an orthography used to write variants of Southern Min Chinese, particularly Taiwanese Southern Min and Amoy Hokkien. Developed by Western missionaries working among the Chinese diaspora in Southeast Asia in the 19th century and refined by missionaries working in Xiamen and Tainan, it uses a modified Latin alphabet and some diacritics to represent the spoken language. After initial success in Fujian, POJ became most widespread in Taiwan and, in the mid-20th century, there were over 100,000 people literate in POJ. A large amount of printed material, religious and secular, has been produced in the script, including Taiwan's first newspaper, the Taiwan Church News.

In Taiwan under Japanese rule (1895–1945) its use was suppressed and Pe̍h-ōe-jī faced further countermeasures during the Kuomintang martial law period (1947–1987). In Fujian, use declined after the establishment of the People's Republic of China (1949) and in the early 21st century the system was not in general use there. Taiwanese Christians, non-native learners of Southern Min, and native-speaker enthusiasts in Taiwan are among those that continue to use Pe̍h-ōe-jī. Full native computer support was developed in 2004, and users can now call on fonts, input methods, and extensive online dictionaries. Rival writing systems have evolved, and there is ongoing debate within the Taiwanese mother tongue movement as to which system should be used. Versions of pe̍h-ōe-jī have been devised for other Chinese varieties, including Hakka and Teochew Southern Min.