This is the 538th most frequent Japanese word.
投票
Voting.
投票 is used here as an action of voting in a political election.
市民は新しい市長を選ぶために投票した。
The citizens voted to elect a new mayor.
投票 is referred to here as the organized act in which individuals participate by voting.
彼は投票に参加し、公正な結果を促進したいと思った。
He wanted to participate in the vote to contribute to a fair result.
投票 is used here as the process of voting to make a decision.