U+0DCA "්" Sinhala Sign Al-Lakuna Unicode Character

U+0DCA "්" Sinhala Sign Al-Lakuna is a combining mark in the Sinhala script used to suppress the inherent vowel of a consonant, functioning as a virama or halant that indicates the consonant is pronounced without any following vowel sound. This diacritic is placed directly beneath a Sinhala consonant character to create a pure consonant, often appearing in composite conjuncts or in loanwords from languages like Pali and Sanskrit. As a critical element of Sinhala orthography, Al-Lakuna enables the accurate representation of consonant clusters and the phonetic adaptation of foreign terms within written Sinhala.