precept vs philosophy

precept and philosophy both are nouns.

Word	Noun	Adjective	Verb	Adverb
precept	Yes	No	No	No
philosophy	Yes	No	No	No

As nouns, philosophy is a hypernym of precept; that is, philosophy is a word with a broader meaning than precept:

precept: a doctrine that is taught
philosophy: a belief (or system of beliefs) accepted as authoritative by some group or school

Other hypernyms of precept include doctrine, ism, philosophical system, school of thought.

precept (noun)	philosophy (noun)
a doctrine that is taught	the rational investigation of questions about existence and knowledge and ethics
rule of personal conduct	a belief (or system of beliefs) accepted as authoritative by some group or school
	any personal belief about how to live or how to deal with a situation