U+A9B4 "ꦴ" Javanese Vowel Sign Tarung Unicode Character

U+A9B4 "ꦴ" Javanese Vowel Sign Tarung is a combining diacritical mark used in the Javanese script to modify the inherent vowel of an independent syllable or a consonant character, specifically lengthening it from a short /a/ to a long /a:/ sound. Visually, it appears as a small horizontal line placed above the base character, functioning similarly to a macron in other writing systems. This vowel sign is essential for accurately representing the phonology of the Javanese language, particularly in formal or literary contexts where vowel length distinctions are meaningful, and it is part of the Unicode block designated for Javanese script, reflecting ongoing efforts to support the digital encoding of traditional Southeast Asian alphabets.