European plan vs meal plan

European plan and meal plan both are nouns.

Word	Noun	Adjective	Verb	Adverb
European plan	Yes	No	No	No
meal plan	Yes	No	No	No

As nouns, meal plan is a hypernym of European plan; that is, meal plan is a word with a broader meaning than European plan:

European plan: a hotel plan that provides a continental breakfast daily
meal plan: a plan and a room rate for providing a room and meals to guests at a hotel

Other hypernyms of European plan include hotel plan.

European plan (noun)	meal plan (noun)
a hotel plan that provides a continental breakfast daily	a plan and a room rate for providing a room and meals to guests at a hotel