• Religious abominator
• Religious abstainer
• Religious acolyte
• Religious adherent
• Religious adoration
• Religious affiliation
• Religious aggiornamento
• Religious agnosticism
• Religious anathematization
• Religious anchorite
• Religious anointment
• Religious apocalyptist
• Religious apocrypha
• Religious apologia
• Religious apologist
• Religious apostate
• Religious archaism
• Religious ardentness
• Religious atavist
• Religious atheism