backup
🇺🇸
/ˈbækʌp/
🇬🇧
/ˈbækʌp/
extra help or support that is ready if needed
The police called for backup when the situation became dangerous.
상황이 위험해졌을 때 경찰은 지원을 요청했다.
a copy of important data that can be used if the original is lost
Make sure you have a backup of your files in case your computer fails.
컴퓨터가 고장 날 경우를 대비해 파일 백업을 꼭 해 두세요.