"Acescency" is not a commonly used word, but its spelling can be explained using IPA phonetic transcription. The word is spelled as /əˈsɛsənsi/, with the emphasized syllable being the second syllable. The first syllable is pronounced with the schwa sound /ə/, meaning it is a short and unstressed vowel sound. The next two syllables are pronounced with an /ɛ/ sound, which is similar to the "e" sound in "let". The final syllable is pronounced with an /ənsi/ sound, with the "n" being pronounced softly alongside the "s" sound, which results in a consonant blend.