giant fir vs Abies grandis

giant fir and Abies grandis both are nouns.

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

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

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

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

giant 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