Korean phrase
~까지 회신해 주세요. ~ kka ji hoe sin hae chu se yo
Meaning
Please reply by ___
When to use it
This politely asks for a reply by a stated deadline. It is common in business emails and chats and has a somewhat formal, written tone.
Example dialogue
내일 오전 10시까지 회신해 주세요. nae il o jeon 10 si kka ji hoe sin hae chu se yo
Please reply by 10 a.m. tomorrow.
네, 일정 확인해서 내일 오전 10시까지 답변 드리겠습니다. ne il jeong hwa gin hae seo nae il o jeon 10 si kka ji tap ppyeon teu ri get sseum ni da
Yes, I will check the schedule and reply by 10 a.m. tomorrow.