This is the 1368th most frequent Korean word.
생애
"생애" means "lifetime" or "life."
In this sentence, "생애" is used to refer to a person's lifetime, emphasizing a period dedicated towards a particular pursuit.
그녀는 자신의 생애를 아이들을 돌보는 데 바쳤다.
She dedicated her life to taking care of children.
Here, "생애" is used to highlight an event occurring within the span of someone's lifetime.
생애 처음으로 그녀는 외국 여행을 가기로 결심했다.
For the first time in her life, she decided to go on a trip abroad.
In this context, "생애" refers to the entirety of the painter's life as reflected in the art produced during it.