U+0D3E "ാ" Malayalam Vowel Sign Aa Unicode Character

U+0D3E "ാ" Malayalam Vowel Sign Aa is a combining diacritical mark used in the Malayalam script to indicate the long vowel sound "aa" (ā). It appears as a distinct right-curving sign attached to the right side of a consonant character, modifying its inherent vowel from a short 'a' to a long 'ā'. This character is essential for accurately representing the phonetic length of vowels in Malayalam words, playing a key role in distinguishing meaning between words that differ only by vowel length. As a modifier, it is always used in conjunction with a base consonant and never appears independently, following the standard orthographic rules of the Malayalam abugida.