"Sifu" is a common romanization, although the term and pronunciation are also used in other southern languages. In Mandarin Chinese, it is spelled "shifu" in pinyin. Using non-rhotic British English pronunciation, in Mandarin it would sound something similar to "sure foo". Using IPA, 'shi' is pronounced 'ʂɨ'. The 'i' is a short vowel. Many martial arts studios incorrectly pronounce this like "she foo". In Cantonese, it is said as "see foo" (almost like "sea food", without the "d" on the end).