noun
simultaneous elections; double election
Refers to holding two or more elections on the same day, typically for different chambers or levels of government. Common in political contexts.
今年は衆議院と参議院の同時選挙が行われる可能性がある。
There is a possibility that simultaneous elections for the House of Representatives and the House of Councillors will be held this year.
同時選挙は有権者の関心を高める効果があると言われている。
Simultaneous elections are said to have the effect of increasing voter interest.