Orthography
The current official orthography derives from an Americanist version of the International Phonetic Alphabet. As such its graphemes broadly resemble those of IPA, and there is a close one-to-one correspondence between graphemes and phonemes.
Winnebago orthography differs from IPA in that the nasal vowels are indicated using an ogonek, thus į, ų, ą (respectively /ĩ/, /ũ/, /ã/). Furthermore, the postalveolar and palatal consonants are written as c, j, š, ž, and y (respectively IPA /tʃ/, /dʒ/, /ʃ/, /ʒ/ and /j/) – the last three being the norm in Americanist phonetic notation. More unusually, t represents /d/, while ǧ represents IPA /ɣ/. Finally, the glottal stop is represented by ʼ (known in Winnebago as hiyuša jikere).
Read more about this topic: Winnebago Language