kauri copal vs kauri resin

kauri copal and kauri resin both are nouns.

Word	Noun	Adjective	Verb	Adverb
kauri copal	Yes	No	No	No
kauri resin	Yes	No	No	No

As nouns, kauri copal and kauri resin are synonyms defined as:

kauri copal and kauri resin: resin of the kauri trees of New Zealand; found usually as a fossil; also collected for making varnishes and linoleum

Other synonyms of kauri copal include kauri, kauri gum.

kauri copal (noun)	kauri resin (noun)
resin of the kauri trees of New Zealand; found usually as a fossil; also collected for making varnishes and linoleum	resin of the kauri trees of New Zealand; found usually as a fossil; also collected for making varnishes and linoleum