This is the 1008th most frequent Korean word.
부분이
"부분이" means "part, portion, or section."
In this sentence, '부분이' refers to 'most part' of the book and functions as the subject of the sentence, describing its content composition.
이 책의 대부분이 짧은 이야기로 구성되어 있습니다.
Most of this book is composed of short stories.
Here, '부분이' means 'important part' and acts as the subject, indicating the completed portion of the project.
그 프로젝트의 중요한 부분이 끝났습니다.
A significant part of the project has been completed.
In this instance, '부분이' represents 'dark parts' in the painting, highlighting areas that are hard to see.