The spelling of "bierman" seems simple, but its phonetic transcription reveals some complexities. In IPA, bierman is spelled as /ˈbiərmən/. The first syllable is pronounced as "bee-uh", with a schwa sound in the middle. The second syllable has a short "r" sound followed by a nasal "m", pronounced with the lips closed and the airflow passing through the nose. The final syllable has a schwa sound followed by a consonant "n". Therefore, the correct spelling for this word is "bierman," with an "ie" in the first syllable and a singular "n" at the end.