U+17BA "ឺ" Khmer Vowel Sign Yy Unicode Character

U+17BA "ឺ" Khmer Vowel Sign Yy is a combining diacritical mark used in the Khmer script, which is the writing system for the Khmer language of Cambodia. This specific vowel sign modifies the inherent vowel of a consonant to produce a long "ɨ" sound, similar to the vowel in the English word "food" but with the lips unrounded and the tongue positioned centrally. It appears as a small, curved diacritic placed above the Khmer consonant it accompanies, and it is an essential component for accurately representing the phonetic distinctions and lexical meanings in written Khmer, particularly in words where a long, close back unrounded vowel is required.