This is the 14954th most frequent Korean word.
반입을
"반입을" means "bringing in" or "importing."
In this sentence, '반입을' refers to the act of bringing items (specifically food) into the library.
도서관에서는 음식물 반입을 금지합니다.
Food is prohibited from being brought into the library.
Here, '반입을' is used to describe the import or transfer of prohibited items into an area (airport security context).
공항에서는 금지된 물품의 반입을 막기 위해 엄격한 검사가 필요합니다.
Strict inspections are needed at airports to prevent the bringing in of prohibited items.
In this example, '반입을' details the prohibition of carrying certain items (exhibits) into the museum space.