How Do You Spell RABIOUS?
Pronunciation: [ɹˈabɪəs] (IPA) 
The word "Rabious" is spelled with an "o" after the "b" because of the pronunciation of the word. The IPA phonetic transcription for "Rabious" is /ˈreɪbiəs/. The "o" in the spelling is used to represent the schwa sound in the second syllable /biəs/. This is a common spelling rule in English where we use the letter "o" after a consonant to represent the schwa sound. So, the spelling of "Rabious" is a result of the pronunciation of the word.
