guaiac wood vs wood

guaiac wood and wood both are nouns.

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

As nouns, wood is a hypernym of guaiac wood; that is, wood is a word with a broader meaning than guaiac wood:

guaiac wood: heartwood of a palo santo; yields an aromatic oil used in perfumes
wood: the hard fibrous lignified substance under the bark of trees

guaiac wood (noun)	wood (noun)
heartwood of a palo santo; yields an aromatic oil used in perfumes	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	a golf club with a long shaft used to hit long shots; originally made with a wooden head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