ʩ

ʩ (Latin Small Letter Feng Digraph, U+02A9) is a highly specialized character found in the IPA Extensions block, used to represent a very specific and complex co-articulated sound: a *simultaneous* voiceless labiodental fricative [f] and voiceless velar fricative [x]. Visually, it appears as a unique ligature, often described as a small 'f' with its crossbar extended and curving to resemble a small 'x' or 'h', embodying the fusion of two distinct sounds. Its "Feng" designation stems from its historical application in certain systems for transcribing Chinese, particularly for sounds in words like "feng" (風), meaning "wind," where such a compound articulation might be observed. Although not a core symbol of the International Phonetic Alphabet, it demonstrates the remarkable precision and historical depth of phonetic transcription, reflecting attempts to capture the most intricate nuances of human speech.