U+16F86 "𖾆" Miao Vowel Sign Iong Unicode Character

U+16F86 "𖾆" Miao Vowel Sign Iong is a combining diacritical mark used in the Pollard Miao script, which was developed in the early 20th century for writing the Hmong and related languages. This specific vowel sign indicates the sound represented by "iong" and is placed above the main consonant character to form a complete syllable. It is part of the Miao Supplement block in Unicode, supporting the transcription of Hmong dialects across Southern China and Southeast Asia. The character helps preserve the phonetic precision of the Pollard script, which is notable for its use of distinct symbols for consonants and vowel combinations.