repeat election; recall election
Refers to an election held again, either because the previous result was invalidated or because an official is being recalled. The specific type depends on context.
不正があったため、再選挙が行われた。
A repeat election was held because of irregularities.
市長のリコールで再選挙が実施される。
A recall election will be held for the mayor.
Compound of 再 (sai, 'again') and 選挙 (senkyo, 'election').