grand fir vs Abies grandis

grand fir and Abies grandis both are nouns.

Word	Noun	Adjective	Verb	Adverb
grand fir	Yes	No	No	No
Abies grandis	Yes	No	No	No

As nouns, grand fir and Abies grandis are synonyms defined as:

grand fir and Abies grandis: lofty fir of the Pacific coast of northwestern America having long curving branches and deep green leaves

Other synonyms of grand fir include giant fir, lowland fir, lowland white fir.

grand fir (noun)	Abies grandis (noun)
lofty fir of the Pacific coast of northwestern America having long curving branches and deep green leaves	lofty fir of the Pacific coast of northwestern America having long curving branches and deep green leaves