absentee voting; absentee ballot
Refers to the system or act of voting when one cannot be physically present at the polling place, often used in election contexts.
Since I live abroad, I used absentee voting.
不在者投票の手続きは、選挙管理委員会に問い合わせてください。
For the absentee voting procedure, please contact the election administration committee.
Since I was away on a business trip, I voted by absentee ballot.
I applied to the election administration committee for absentee voting.