gymnosophy vs doctrine

gymnosophy and doctrine both are nouns.

Word	Noun	Adjective	Verb	Adverb
gymnosophy	Yes	No	No	No
doctrine	Yes	No	No	No

As nouns, doctrine is a hypernym of gymnosophy; that is, doctrine is a word with a broader meaning than gymnosophy:

gymnosophy: the doctrine of a sect of Hindu philosophers who practiced nudity and asceticism and meditation
doctrine: a belief (or system of beliefs) accepted as authoritative by some group or school

Other hypernyms of gymnosophy include ism, philosophical system, philosophy, school of thought.

gymnosophy (noun)	doctrine (noun)
the doctrine of a sect of Hindu philosophers who practiced nudity and asceticism and meditation	a belief (or system of beliefs) accepted as authoritative by some group or school