(1):
(n.) In the old German empire, one of the princes entitled to choose the emperor.
(2):
(a.) Pertaining to an election or to electors.
(3):
(n.) One of the persons chosen, by vote of the people in the United States, to elect the President and Vice President.
(4):
(n.) Hence, specifically, in any country, a person legally qualified to vote.
(5):
(n.) One who elects, or has the right of choice; a person who is entitled to take part in an election, or to give his vote in favor of a candidate for office.