U+1D09 "ᴉ" Latin Small Letter Turned I Unicode Character

U+1D09 "ᴉ" Latin Small Letter Turned I is a typographic variant of the standard lowercase letter i that has been rotated 180 degrees, differentiating it from the regular i by its inverted shape. It is primarily used in phonetic transcription systems, particularly within the International Phonetic Alphabet, where it represents a near-close central unrounded vowel sound, though it is not a core IPA symbol. This character also appears in certain orthographies and linguistic notations for specialized purposes, such as indicating a reversed or back vowel quality in historical or dialectal studies.