silvertip vs grizzly bear

silvertip and grizzly bear both are nouns.

Word	Noun	Adjective	Verb	Adverb
silvertip	Yes	No	No	No
grizzly bear	Yes	No	No	No

As nouns, silvertip and grizzly bear are synonyms defined as:

silvertip and grizzly bear: powerful brownish-yellow bear of the uplands of western North America

Other synonyms of silvertip include grizzly, silver-tip, Ursus arctos horribilis, Ursus horribilis.

silvertip (noun)	grizzly bear (noun)
powerful brownish-yellow bear of the uplands of western North America	powerful brownish-yellow bear of the uplands of western North America