order Thymelaeales vs family Nyssaceae

order Thymelaeales and family Nyssaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
order Thymelaeales	Yes	No	No	No
family Nyssaceae	Yes	No	No	No

order Thymelaeales (noun)	family Nyssaceae (noun)
Myrtaceae, Combretaceae, Elaeagnaceae, Haloragidaceae, Melastomaceae, Lecythidaceae, Lythraceae, Rhizophoraceae, Onagraceae, Lecythidaceae, Punicaceae	a family of dicotyledonous trees of order Myrtales that includes the sour gum trees