Fentanest is a word often misspelled due to its complex pronunciation. In the IPA phonetic transcription, it is spelled as /fɛntənɛst/. The first syllable is pronounced as "fent" with a short e sound, followed by "ə" which is a schwa sound, and ends with "nɛst" pronounced as one syllable. The spelling of this word is crucial as it is a brand name for a medication and any incorrect spelling could lead to confusion and possible medical errors. Therefore, it is important to pay attention to its correct spelling.