candidate vs pol

candidate and pol both are nouns.

Word	Noun	Adjective	Verb	Adverb
candidate	Yes	No	No	No
pol	Yes	No	No	No

As nouns, pol is a hypernym of candidate; that is, pol is a word with a broader meaning than candidate:

Other hypernyms of candidate include political leader, politician, politico.

candidate (noun)	pol (noun)
someone who is considered for something (for an office or prize or honor etc.)	a person active in party politics
a politician who is running for public office