1) Adult 2) Elector 3) Inhabitant 4) Xer 1) US woman since 1920 2) Any woman since 1918 3) Ballot caster 4) Ballot marker 5) Ballot reader 6) Ballot-caster 7) Booth occupant 8) Booth user 9) Campaign ad target 10) Campaign target 11) Certain American Idol viewer 12) Citizen 13) Citizen with a voice 14) Election Day bigwig 15) Election Day figure 
• (n.) One who votes; one who has a legal right to vote, or give his suffrage; an elector; a suffragist; as, an independent voter.
Vot'er noun One who votes; one who has a legal right to vote, or give his suffrage; an elector; a suffragist; as, an independent voter . 
[n] - a citizen who has a legal right to vote
elector noun a citizen who has a legal right to vote