The correct spelling of the word "hannigan" is /ˈhænɪɡən/. The first syllable "han" is pronounced as "han" in "hand" with a short "a" sound, while the second syllable "ni" is pronounced as "ni" in "nick" with a short "i" sound. The final syllable "gan" is pronounced as "gan" in "again" with a short "a" sound. The spelling can easily be confused with similar words such as "Hanukkah" or "Hannukainen," but it is important to note the correct spelling for effective communication.