The word "prologuist" is a noun that refers to a person who writes or delivers a prologue. The spelling of this word can be explained using the IPA phonetic transcription [proh-law-gyoo-ist], where "proh" represents the first syllable with the vowel sound of "oh", "law" represents the following syllable with the vowel sound of "aw", "gyoo" represents the third syllable with the consonant sound of "gy" and the vowel sound of "oo", and "ist" represents the final syllable with the consonant sound of "ist".