This is the 11813th most frequent Korean word.
내용들이고
"내용들이고" is not a standard Korean word; it appears to combine "내용" (content) and a form likely intending "들이고" as a conjugation, but it's unclear without context.
Here, '내용들이고' combines '내용들' (contents) with '이고', indicating 'and' to connect two ideas about the book.
이 책은 다양한 내용들이고 흥미로워.
This book has various contents and is interesting.
In this sentence, '내용들이고' shows that the document has important '내용들' (contents), and the '-이고' links it to the necessity of careful reading.
이 문서는 중요한 내용들이고 신중히 읽어야 해.
This document contains important information and should be read carefully.
Here, '내용들이고' signifies that the contents ('내용들') are easy to understand and was in contrast paired with its clarity using '-이고'.