giant vs Arcturus

giant and Arcturus both are nouns.

Word	Noun	Adjective	Verb	Adverb
giant	Yes	Yes	No	No
Arcturus	Yes	No	No	No

giant (noun)	Arcturus (noun)
any creature of exceptional size	the 4th brightest star and the brightest star in the constellation Bootes; 36 light-years from Earth
an unusually large enterprise
a very bright star of large diameter and low density (relative to the Sun)
someone that is abnormally large and powerful
a person of exceptional importance and reputation
an imaginary figure of superhuman size and strength; appears in folklore and fairy tales
a very large person; impressive in size or qualities

giant (adjective)	Arcturus (adjective)
of great mass; huge and bulky