irredentism vs doctrine

irredentism and doctrine both are nouns.

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

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

irredentism: the doctrine that irredenta should be controlled by the country to which they are ethnically or historically related
doctrine: a belief (or system of beliefs) accepted as authoritative by some group or school

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

irredentism (noun)	doctrine (noun)
the doctrine that irredenta should be controlled by the country to which they are ethnically or historically related	a belief (or system of beliefs) accepted as authoritative by some group or school