upvote vs voting

upvote and voting both are nouns.

Word	Noun	Adjective	Verb	Adverb
upvote	Yes	No	Yes	No
voting	Yes	No	No	No

As nouns, voting is a hypernym of upvote; that is, voting is a word with a broader meaning than upvote:

upvote: A positive vote on a social media website
voting: a choice that is made by counting the number of people in favor of each alternative

Other hypernyms of upvote include ballot, balloting, vote.

upvote (noun)	voting (noun)
A positive vote on a social media website	a choice that is made by counting the number of people in favor of each alternative

upvote (verb)	voting (verb)
To vote positively on a social media website