olive family vs genus Syringa

olive family and genus Syringa both are nouns.

Word	Noun	Adjective	Verb	Adverb
olive family	Yes	No	No	No
genus Syringa	Yes	No	No	No

olive family (noun)	genus Syringa (noun)
trees and shrubs having berries or drupes or capsules as fruits; sometimes placed in the order Oleales: olive, ash, jasmine, privet, lilac	genus of Old World shrubs or low trees having fragrant flowers in showy panicles: lilacs