In one side and out the opposite or another side of.
예문
1. He searched through his papers. (그는 서류를 뒤지면서 찾았다) 2. When will you be through school today? (오늘은 몇 시에 학교가 끝나니) 3. The cat jumped in through the open window. (고양이는 열린 창문을 통해 뛰어 들어왔다) 4. look in through a hole in the wall (벽의 구멍으로 들여다보다) 5. Can you check my baggage straight through? (이 수하물을 목적지까지 죽 맡아 주시겠습니까)
