guaiac vs lignum vitae

guaiac and lignum vitae both are nouns.

Word	Noun	Adjective	Verb	Adverb
guaiac	Yes	No	No	No
lignum vitae	Yes	No	No	No

As nouns, guaiac and lignum vitae are synonyms defined as:

guaiac and lignum vitae: hard greenish-brown wood of the lignum vitae tree and other trees of the genus Guaiacum

Other synonyms of guaiac include guaiacum.

guaiac (noun)	lignum vitae (noun)
hard greenish-brown wood of the lignum vitae tree and other trees of the genus Guaiacum	small evergreen tree of Caribbean and southern Central America to northern South America; a source of lignum vitae wood, hardest of commercial timbers, and a medicinal resin
	hard greenish-brown wood of the lignum vitae tree and other trees of the genus Guaiacum