Latin Small Letter U Bar

Latin Small Letter U Bar at U+0289 represents a high central rounded vowel sound in phonetic transcription. It belongs to the IPA Extensions block and is a lowercase phonetic letter rather than an ordinary spelling letter in most alphabets. Its main use is in the International Phonetic Alphabet, where ʉ marks a vowel articulated with the tongue high and central while the lips are rounded. It appears in dictionaries, linguistic field notes, language textbooks, and phonology papers; for example, English dialect studies may use it for the vowel in words like goose when that vowel is centralized rather than back. The letter is also used in descriptions of languages that contrast this sound phonemically, including Swedish, Norwegian dialects, some Australian Aboriginal languages, and various African and Indigenous American languages. In practical language documentation, it may appear in wordlists, pronunciation guides, and orthographies influenced by phonetic notation, although many communities choose simpler local spelling conventions instead. Because it resembles a small u with a horizontal bar through it, it can be misread as a stylized Latin u in casual text. In serious phonetic work, that bar is meaningful: it distinguishes ʉ from ordinary u, which in IPA denotes a high back rounded vowel.