superstar vs hotshot

superstar and hotshot both are nouns.

Word	Noun	Adjective	Verb	Adverb
superstar	Yes	No	No	No
hotshot	Yes	No	No	No

As nouns, superstar and hotshot are synonyms defined as:

Other synonyms of superstar include ace, adept, champion, genius, maven, mavin, sensation, star, virtuoso, whiz, whizz, wiz, wizard.

superstar (noun)	hotshot (noun)
someone who is dazzlingly skilled in any field	someone who is dazzlingly skilled in any field