primary election

(politics) A preliminary election to select a political candidate of a political party.

Japanese Meaning

予備選挙（各政党が候補者を選出するために行う初期選挙）

The candidates campaigned vigorously in the weeks leading up to the primary election.

候補者たちは予備選挙に向けた数週間にわたり精力的に選挙運動を行った。

Sense（1）

(politics) A preliminary election to select a political candidate of a political party.

primary elections

（ plural ）