The spelling of the word "GNEUAC" may seem strange and unfamiliar, but it can be explained through its phonetic transcription. The word is spelled using a combination of letters that represent specific sounds in the International Phonetic Alphabet (IPA). In this case, the letters represent the sounds /g/, /n/, /ju/, /ɑ/ and /k/. While the spelling may seem challenging, the correct pronunciation of the word can be achieved by following its phonetic transcription.