voting vs choice

voting and choice both are nouns.

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

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

voting: a choice that is made by counting the number of people in favor of each alternative
choice: the act of choosing or selecting

Other hypernyms of voting include option, pick, selection.

voting (noun)	choice (noun)
a choice that is made by counting the number of people in favor of each alternative	the act of choosing or selecting
	the person or thing chosen or selected
	one of a number of things from which only one can be chosen

voting (adjective)	choice (adjective)
	of superior grade
	appealing to refined taste