This is the 6754th most frequent Korean word.
이라고도
"이라고도" means "is also called" or "is also referred to as."
'이라고도' is used to indicate that Seoul had another name, Hanyang, emphasizing the alternative naming.
서울은 한 때 '한양'이라고도 불렸습니다.
Seoul was once also called 'Hanyang'.
'이라고도' signifies that besides other uses, this book can be used as a textbook as well.
이 책은 교과서라고도 사용될 수 있습니다.
This book can also be used as a textbook.
'이라고도' illustrates an additional descriptor used for the person, showing an alternate way he is referenced.