반가움 or 반가운
Which word is correct ??
Because comic in naver. com writes 반가운 but in korean dictionary write 바가움

Question

Answer

반가운=glad: adjective
반가움=gladness: noun

Answer

Both are correct but the usages are different.

Both are from 반갑다.
반갑다 means "glad, happy, pleasant, welcome "

반가운 is composed as 
반갑(다) + (으)ㄴ
(으)ㄴ is a suffix for making a determiner
Generally a word of the declension with (으)ㄴ is not listed in dictionary.

반가움 is composed as 
반갑(다) + (으)ㅁ
(으)ㅁ is a suffix for making a noun

ex)
반가운 소식 means "happy news"
반가움 means "delight"