This is the 11504th most frequent Korean word.
끝자리
"끝자리" means "last digit" or "last position."
Here, '끝자리' refers to the last digit or position, in this case of a phone number.
휴대폰 번호 끝자리를 기억하시나요?
Do you remember the last digit of your phone number?
In this sentence, '끝자리' indicates the last spot or position in a queue or line.
이 줄의 끝자리에 서세요.
Please stand at the end of the line.
Here, '끝자리' means the last character or digit of a date, suggesting it holds special significance in this context.