The spelling of the word "boutelle" can be a bit confusing to some individuals. Phonetically, it is pronounced as /buːˈtɛl/. One reason for the confusion may be that the "ou" combination is typically pronounced as "ow" in English, as in the word "house". However, in this case, "ou" is pronounced as "oo". Additionally, the letters "e" and "l" at the end of the word are not pronounced, creating a silent final syllable. Overall, the spelling of "boutelle" is a good example of how English can be unpredictable in its phonetic patterns.