pine vs true pine

pine and true pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
pine	Yes	No	Yes	No
true pine	Yes	No	No	No

As nouns, pine and true pine are synonyms defined as:

Other synonyms of pine include pine tree.

pine (noun)	true pine (noun)
a coniferous tree	a coniferous tree
straight-grained durable and often resinous white to yellowish timber of any of numerous trees of the genus Pinus

pine (verb)	true pine (verb)
have a desire for something or someone who is not present