This is the 17037th most frequent Korean word.
새기는
"새기는" means "engraving" or "carving."
In this context, '새기는' is used metaphorically to mean 'engraving' or 'deeply imprinting' a lesson or memory in one's heart or mind.
마음에 새기는 중요한 교훈을 잊지 마세요.
Don't forget the important lessons you engrave in your heart.
Here, '새기는' is used in a literal sense to mean 'engraving or carving' something into a physical material, such as wood.
그는 나무 조각에 그림을 새기는 데 능숙합니다.
He is skilled at carving pictures on wooden pieces.
The usage of '새기는' here refers to the physical act of engraving, suggesting a material application usually involving a tool or instrument.