Translation

• (so as) to avoid
• to prevent
• (just) in case

Synonyms

• 严防, 以防万一, 备, 戒, 戒备, 提防, 曲突徙薪, 警备, 谨防, 防, 防备, 防微杜渐, 防患未然, 防护, 防止, 防范, 预防

Examples

• 俭以防匮。
  Waste not, want not.
• 我们总是应该带上安全带以防出事故。
  We should always wear a seatbelt in case we have an accident.
• 他们和一个导游一起出发，只是为了以防迷路。
  They set out with a guide just in case they lost their way.