isolationism vs foreign policy

isolationism and foreign policy both are nouns.

Word	Noun	Adjective	Verb	Adverb
isolationism	Yes	No	No	No
foreign policy	Yes	No	No	No

As nouns, foreign policy is a hypernym of isolationism; that is, foreign policy is a word with a broader meaning than isolationism:

isolationism: a policy of nonparticipation in international economic and political relations
foreign policy: a policy governing international relations

isolationism (noun)	foreign policy (noun)
a policy of nonparticipation in international economic and political relations	a policy governing international relations