Pluto vs Dis

Pluto and Dis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pluto	Yes	No	No	No
Dis	Yes	No	No	No

As nouns, Pluto and Dis are synonyms defined as:

Pluto and Dis: (Roman mythology) god of the underworld; counterpart of Greek Hades

Other synonyms of Pluto include Dis Pater, Orcus.

Pluto (noun)	Dis (noun)
a large asteroid that was once thought to be the farthest known planet from the sun; it has an elliptical orbit	(Roman mythology) god of the underworld; counterpart of Greek Hades
(Roman mythology) god of the underworld; counterpart of Greek Hades
a cartoon character created by Walt Disney, a red-colored, medium-sized, short-haired dog with black ears