The spelling of the word "Pennleigh" can be explained through its IPA phonetic transcription, which is /pɛnlɪ/. The initial sound, /p/, represents the voiceless bilabial plosive, followed by the vowel, /ɛ/. The next two sounds, /n/ and /l/, represent the alveolar nasal and lateral, respectively. Finally, the last sound, /ɪ/, represents the short vowel sound. Together, these sounds make up the spelling of "Pennleigh," which is a phonetically written word that does not follow traditional spelling patterns.