U+311F "ㄟ" Bopomofo Letter Ei Unicode Character

U+311F "ㄟ" Bopomofo Letter Ei is a phonetic symbol used in the Bopomofo (Zhuyin Fuhao) system, primarily employed in Taiwan to transcribe the pronunciation of Mandarin Chinese. It represents the compound final vowel sound "ei", which is roughly analogous to the sound in the English word "say" but without the trailing off-glide. In Bopomofo notation, it appears as a standalone character for spelling syllables, and it is used in educational contexts and input methods to clarify Taiwanese Mandarin phonetics. This character is part of the Bopomofo block in Unicode, which was included to support the notation system's role in language instruction and digital communication.