U+3140 "ㅀ" Hangul Letter Rieul-Hieuh Unicode Character

U+3140 "ㅀ" Hangul Letter Rieul-Hieuh is a single character that represents a digraph in the Hangul alphabet, specifically a combination of the consonants rieul (ㄹ) and hieuh (ㅎ). It is used primarily in Korean in the final consonant position (batchim) of a syllable, where it phonetically influences the following sound through tensing or aspiration. This character belongs to the Hangul Compatibility Jamo block and encodes a composite letter that was historically used in standard Korean orthography, though its independent usage as a distinct jamo has become less common in modern typesetting with the rise of fully composed syllable blocks.