meeting house vs aquilegia

meeting house and aquilegia both are nouns.

Word	Noun	Adjective	Verb	Adverb
meeting house	Yes	No	No	No
aquilegia	Yes	No	No	No

As nouns, aquilegia is a hypernym of meeting house; that is, aquilegia is a word with a broader meaning than meeting house:

meeting house: columbine of eastern North America having long-spurred red flowers
aquilegia: a plant of the genus Aquilegia having irregular showy spurred flowers; north temperate regions especially mountains

Other hypernyms of meeting house include aquilege, columbine.

meeting house (noun)	aquilegia (noun)
columbine of eastern North America having long-spurred red flowers	a plant of the genus Aquilegia having irregular showy spurred flowers; north temperate regions especially mountains