The spelling of the phrase "Jehan Adam" can be explained using the International Phonetic Alphabet (IPA) transcription. In this transcription, "Jehan" is spelled as /d͡ʒɛhan/ and "Adam" is spelled as /adam/. The first part of the phrase, "Jehan," is pronounced with a voiced palato-alveolar affricate /d͡ʒ/, followed by the vowel sound /ɛ/ and the consonant sound /h/ and /an/. The second part, "Adam," is pronounced with the consonant sound /a/ and the vocalic sound /dəm/. Overall, the transcription provides a clear representation of the sounds used to spell the phrase "Jehan Adam".