Creed
Part of speech: verb
Definition: To believe; to credit.
Part of speech: noun
Definition: That which is believed; accepted doctrine, especially religious; a particular set of beliefs; any summary of principles or opinions professed or adhered to. A reading or statement of belief that summarizes the faith it represents; a definite summary of what is believed; a confession of faith for public use; esp., one which is brief and comprehensive.
Example sentence: What a man believes may be ascertained, not from his creed, but from the assumptions on which he habitually acts.
Credo
Part of speech: noun
Definition: A belief system.