U+1BEC "ᯬ" Batak Vowel Sign O Unicode Character

U+1BEC "ᯬ" Batak Vowel Sign O is a combining diacritical mark used in the Batak script, an abugida historically employed for writing several Batak languages of Sumatra, Indonesia. This specific sign attaches to a consonant base character to indicate that the inherent vowel of that consonant should be replaced with an "o" sound. Visually resembling a small, hollow diamond or circle positioned above the consonant, it is a crucial component for correctly spelling and reading Batak texts, representing one of the script's primary vowel modifications.