The spelling of the word "Nuren" can be explained using the International Phonetic Alphabet (IPA) phonetic transcription. The word is pronounced as /njuːrən/ which can be broken down into individual sounds. The first sound is "n" followed by "juː" which is a diphthong representing the sounds "y" and "oo". The third sound is "r" followed by "ən" which is a schwa sound followed by "n". The spelling of "Nuren" accurately represents the sounds of the word based on the rules of English phonetics.