functionalism vs doctrine

functionalism and doctrine both are nouns.

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

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

functionalism: any doctrine that stresses utility or purpose
doctrine: a belief (or system of beliefs) accepted as authoritative by some group or school

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

functionalism (noun)	doctrine (noun)
a psychology based on the assumption that all mental process are useful to an organism in adapting to the environment	a belief (or system of beliefs) accepted as authoritative by some group or school
any doctrine that stresses utility or purpose