The spelling of the word "Alidah" can be explained using the International Phonetic Alphabet (IPA). The first syllable "Al" is pronounced with a short "a" sound, followed by an "l" sound. The second syllable "i" is pronounced with a long "i" sound, followed by a "d" sound. The third syllable "ah" is pronounced with a short "a" sound, followed by an "h" sound. Therefore, the correct spelling of the word is "Alidah," pronounced as /ælɪdɑː/.