noun
primary election; preliminary election
Refers to an election held to choose a party's candidate for a main election, common in political contexts.
アメリカの大統領選挙では、まず各党の予備選挙が行われる。
In the U.S. presidential election, each party's primary election is held first.
予備選挙の結
As a result of the primary election, he was chosen as the party's candidate.
本選挙 is the main election that follows a primary, while 予備選挙 is the preliminary election to select candidates.
Compound of 予備 (preliminary, reserve) and 選挙 (election).