This is the 5215th most frequent Korean word.
단어가
"단어가" means "word" or "vocabulary" (when used in a sentence context).
Here, '단어가' refers to the subject 'the word' in the sentence, emphasizing its role in the difficulty of understanding the intended meaning.
이 단어가 뜻하는 바를 이해하기 어렵습니다.
It is difficult to understand what this word means.
In this case, '단어가' identifies the subject 'new words' that appeared in the book.
그 책에서 새로운 단어가 많이 나왔어요.
Many new words appeared in that book.
Here, '단어가' is used to indicate the subject 'words,' focusing on the quantity remarked by the friend.