in case of; in preparation forUsed after a noun referring to a possible event or situation to describe preparing for it. The noun ending in a consonant takes 을 대비해서; nouns ending in a vowel take 를 대비해서.
KO: 사고를 대비해서 비상 연락처를 적어 뒀어요.
EN: I wrote down emergency contact information in case of an accident.