U+01FF "ǿ" Latin Small Letter O with Stroke and Acute Unicode Character

U+01FF "ǿ" Latin Small Letter O with Stroke and Acute is a composite glyph used primarily in the phonemic transcription of certain Scandinavian languages, most notably to represent a specific front rounded vowel sound in Old Norse and modern linguistic studies. It combines a base letter o with a horizontal stroke through its center and an acute accent above, indicating a distinct phoneme that often results from historical vowel shifts or umlaut processes. This character is encoded in the Latin Extended-B block of Unicode and is sometimes applied in scholarly texts or dictionaries to denote a closed, stressed variant of the long o sound, though its usage remains narrow and specialized outside of linguistic or philological contexts.