lumber vs wood

lumber and wood both are nouns.

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

lumber (noun)	wood (noun)
an implement used in baseball by the batter	any wind instrument other than the brass instruments
the wood of trees cut and prepared for use as building material	a golf club with a long shaft used to hit long shots; originally made with a wooden head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

lumber (verb)	wood (verb)
cut lumber, as in woods and forests
move heavily or clumsily