The spelling of the word "Hillery" is often confused due to its similarity to the more common name, Hillary. The correct pronunciation of "Hillery" is [ˈhɪləri], with the stress on the first syllable. The spelling of the word can be explained using the International Phonetic Alphabet (IPA). The letter "i" is pronounced as "ɪ" and the letter "e" is pronounced as "ə". Therefore, the correct spelling of the name "Hillery" can be understood as "H-i-l-l-e-r-y".