U+A703 "꜃" Modifier Letter Chinese Tone Yang Shang Unicode Character

U+A703 "꜃" Modifier Letter Chinese Tone Yang Shang is a typographic symbol used primarily in linguistic and philological contexts to denote the yang shang tone in historical or reconstructed Chinese phonology. It belongs to the Modifier Tone Letters block and appears as a small raised diacritic, often employed in romanization systems or scholarly transcriptions to indicate a specific tonal contour within the framework of Middle Chinese or certain Sinitic language studies. This character helps linguists accurately represent the rising tonal pattern associated with the yang (lower or breathy) register in tonal categories, distinguishing it from other tone letters in the same Unicode range.