The spelling of the word "Heuser" can be explained phonetically using the International Phonetic Alphabet (IPA). In IPA, "h" represents the voiceless glottal fricative, "eu" represents the mid-central vowel sound similar to the "e" in "bet", and "s" represents the voiceless alveolar fricative. The final "er" sounds like the "er" in "her" and is represented by the schwa symbol. Altogether, the word is pronounced as "ˈhɔɪzɚ" in IPA.