U+1EDF "ở" Latin Small Letter O with Horn and Hook Above Unicode Character

U+1EDF "ở" Latin Small Letter O with Horn and Hook Above is a specialized alphabetic symbol used primarily in the Vietnamese language, where it represents the letter "o" with a diacritic horn attached to its right side and a hook above indicating a low-falling-rising tone. This character is part of the Latin Extended Additional block and is essential for accurately writing and pronouncing Vietnamese words, as it modifies the base vowel to reflect a distinct phonological quality. It is commonly found in romanized Vietnamese text, supporting the language's complex tonal and diacritic system.