secret ballot (noun)

1. In the movie, the election for class president was conducted using a secret ballot to ensure fairness and impartiality.

2. In the anime series, the characters participate in a thrilling secret ballot to determine the next leader of their group.

3. According to the ancient myth, the gods organized a secret ballot to decide who would be the ruler of the heavens.

4. In the novel, the protagonist gets involved in a secret ballot to choose the representatives for the student council.