The spelling of the word "rhnegatives" refers to a group of people with a specific blood type that lacks the Rh factor. The IPA phonetic transcription for this word is /ɑr-ˈeɪtʃ-nɛɡətɪvz/ which indicates the pronunciation of each individual letter and sound. The "rh" sound is represented by the letter "r" and the phonetic symbol for the "h" sound (/h/). The word ends with the plural suffix "-es" (/ɪz/). Spelling correctly is important to ensure effective communication and understanding.