The spelling of the word "heroux" follows the English language's phonetic rules. It is pronounced as "her-OO" with a silent "x" at the end. The IPA phonetic transcription for this word is /həˈruː/. The "h" sound represents the beginning of the word, followed by a short "e" sound and a long "oo" sound. The spelling of "heroux" may be confusing, but it reflects the sounds of the word in English.