U+1D30 "ᴰ" Modifier Letter Capital D Unicode Character

U+1D30 "ᴰ" Modifier Letter Capital D is a small, superscript-style version of a capital D used primarily in phonetic transcription systems such as the Uralic Phonetic Alphabet. It serves as a modifier to indicate a specific sound quality or to denote that the base letter should be pronounced with a voiced dental or alveolar stop articulation, often representing a reduced or secondary articulation in linguistic notation. Unlike its lowercase counterpart, this capital form provides a distinct visual cue for phonological distinctions in specialized writing.