This is the 17293rd most frequent Korean word.
선거일인
"선거일인" means "election day person" or "someone involved on election day."
Here, '선거일인' is used as an adjective describing the day (날), indicating the day designated for elections.
선거일인 날에는 많은 사람들이 투표소로 갑니다.
On the election day, many people go to polling stations.
In this sentence, '선거일인' is used similarly as before, qualifying '그날' to refer specifically to the day of elections, providing contextual importance.
선거일인 그날은 중요한 결정을 내리는 날입니다.
The election day is a day for making important decisions.
Here, '선거일인' again serves as a qualitative adjective emphasizing the significance of the time frame as it pertains to elections.