lignin vs wood

lignin and wood both are nouns.

Word	Noun	Adjective	Verb	Adverb
lignin	Yes	No	No	No
wood	Yes	No	No	No

lignin (noun)	wood (noun)
a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants	any wind instrument other than the brass instruments
	a golf club with a long shaft used to hit long shots; originally made with a wooden head
	the trees and other plants in a large densely wooded area
	the hard fibrous lignified substance under the bark of trees