The spelling of the name "Allissah" can be explained using the International Phonetic Alphabet (IPA). The initial "a" sound is pronounced as /ə/, which is short for the schwa vowel. This is followed by the sound of "L" represented as /l/. The second syllable begins with the "i" sound, which is pronounced as /ɪ/. This is followed by a double "s" sound, represented as /s/ and finally, the name ends with the sound "ah" pronounced as /ə/. Therefore, "Allissah" is pronounced /əˈlɪsə/.