This is the 626th most frequent Korean word.
당일
"당일" means "the same day."
In this sentence, '당일' refers to 'on the exact day,' specifically the same day when an event or activity takes place. It emphasizes timing.
행사의 당일에는 많은 사람들이 모였다.
On the day of the event, many people gathered.
Here, '당일' is used to specify 'the same day,' indicating any activity or action that occurs within the same day of inquiry or event.
당일 예약은 불가능합니다.
Same-day reservations are not available.
'당일치기 여행' (a one-day trip) uses '당일' to denote a trip completed within a single day, emphasizing that it begins and ends on the same calendar day.