시집이 · 시집을
poetry collection, book of poems
Example
서점에서 좋아하는 시인의 시집을 샀어요.
I bought a book of poems by my favorite poet at the bookstore.
Word parts
시 poem+집 collection
Literally 'poem collection'.
Good to know
Don't confuse it with the other 시집 in 시집가다, 'a woman gets married (joins her husband's family)'.