Lens vs subfamily Papilionoideae

Lens and subfamily Papilionoideae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lens	Yes	No	No	No
subfamily Papilionoideae	Yes	No	No	No

Lens (noun)	subfamily Papilionoideae (noun)
genus of small erect or climbing herbs with pinnate leaves and small inconspicuous white flowers and small flattened pods: lentils	alternative name used in some classification systems for the family Papilionaceae