The spelling of the word "Norul" can be explained using the International Phonetic Alphabet (IPA). The first sound is "n", pronounced as /n/. The second sound is "o", pronounced as /ɔ/. The third sound is "r", pronounced as /r/. The fourth sound is "u", pronounced as /u/. Finally, the last sound is "l", pronounced as /l/. Therefore, the correct spelling of "Norul" can be phonetically written as /nɔrul/.