plume vs melanin

plume and melanin both are nouns.

Word	Noun	Adjective	Verb	Adverb
plume	Yes	No	Yes	No
melanin	Yes	No	No	No

plume (noun)	melanin (noun)
the light horny waterproof structure forming the external covering of birds	insoluble pigments that account for the color of e.g. skin and scales and feathers
a feather or cluster of feathers worn as an ornament
anything that resembles a feather in shape or lightness

plume (verb)	melanin (verb)
dress or groom with elaborate care
form a plume
clean with one's bill
deck with a plume
be proud of
rip off; ask an unreasonable price