Polaris vs Dipper

Polaris and Dipper both are nouns.

Word	Noun	Adjective	Verb	Adverb
Polaris	Yes	No	No	No
Dipper	Yes	No	No	No

Polaris (noun)	Dipper (noun)
the brightest star in Ursa Minor; at the end of the handle of the Little Dipper; the northern axis of the earth points toward it	a group of seven bright stars in the constellation Ursa Major
	a cluster of seven stars in Ursa Minor; at the end of the dipper's handle is Polaris