The surname "Hullinger" is spelled as [ˈhʌlɪndʒɚ] in IPA phonetic transcription. The first syllable is pronounced as [ʌ], which sounds like the "u" in "hut." The second syllable has the sound [ɪ], like the "i" in "sit." The letter "n" in the third syllable is silent, but the sound [dʒ] is pronounced, like the "j" in "jump." The last syllable is pronounced as [ɚ], which sounds like the "er" in "sister." Therefore, "Hullinger" is spelled with a mixture of different vowel and consonant sounds.