The spelling of the word "Neils" can be confusing due to the possible variations in pronunciation. In the International Phonetic Alphabet (IPA) transcription, it is pronounced as /niːlz/. The first syllable is pronounced as "nee," with a long "ee" sound. The second syllable is pronounced with a clear "l" sound followed by a short "z" sound. This spelling can also be written as "Niles" or "Niels" depending on regional variations in pronunciation. Therefore, it is important to consider context when using this word in written or spoken language.