This is the 5766th most frequent Korean word.
보내기
"Sending" or "to send."
Here, '보내기' refers to the act of sending something, specifically a file in this context.
이 파일을 친구에게 보내기 위해 이메일을 작성했어요.
I wrote an email to send this file to my friend.
In this case, '보내기' is used as a noun representing the send button, instrumental in the action of sending letters.
편지의 보내기 버튼을 클릭하세요.
Click the sending button for the letter.
Here, '보내기' functions as a noun form referring to the act of sending a photo after the editing process.