ATIS gives English spellings, but does not give pronunciations or numbers. CMUdict provides a mapping orthographic/phonetic for English words in their North American pronunciations. These spelling differences are due to genuinely different pronunciations. For digraphs and other rules about spelling and the corresponding pronunciations, see Polish orthography. Another reason of different pronunciations is influence of colloquial dialects. Grammatical features and word pronunciations stemming from AAVE are preserved. The two terms have distinct pronunciations and Etymology. The "breast" spelling conforms to the Scottish and North English dialectal pronunciations. There are differences in such lists due to dialect pronunciations and usage of old words. Icelandic orthography is a bit more complicated by having lenited pronunciations of . Readers may then apply their own dialectal pronunciations to written words. For a list of homographs with different pronunciations (heteronyms) see List of homographs. Finals , , , and only appear in colloquial pronunciations of characters. Choe described these names by listing Hanja characters with similar pronunciations. Some words have two acceptable pronunciations, varying largely by accents.