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An election for members of the House of Councillors (上院), the upper house of Japan's bicameral legislature (国会).
参院選で与党が過半数を維持した。
The ruling party maintained its majority in the House of Councillors election.
The House of Councillors has 245 members, with half elected every three years for six-year terms. Elections are held under a parallel voting system combining proportional representation and single non-transferable vote.
Understanding the distinction between 参院選 (upper house) and 衆院選 (lower house) is crucial for following Japanese politics.
Always use the full term '参院選' in formal writing. Abbreviations like '参選' are acceptable in informal contexts.
Combination of 参議院 (House of Councillors) + 選 (election).
The term is used in formal political and media contexts. Informally, it may be abbreviated as '参選' in headlines or casual conversation.