防止

fángzhǐ
  1. to prevent
  2. to guard against
  3. to take precautions

CEDICT

Entry Composition

1 防 fáng
  1. to protect
  2. to defend
  3. to guard against
  4. to prevent
2 止 zhǐ
  1. to stop
  2. to prohibit
  3. until
  4. only