The spelling of the word "aeride" can be explained using the International Phonetic Alphabet (IPA) transcription. The IPA notation for this word is /ˈeɪr.aɪd/. The first syllable is pronounced with the long vowel sound of "ay" and the second syllable is pronounced with the sound of "ride". The spelling of this word reflects the pronunciation of its two syllables, emphasizing the sound of "air" in the first syllable and "ride" in the second, ultimately resulting in the unique word "aeride".