以防万一 yǐ fáng wàn yī

DEFINITIONS

  1. to guard against the unexpected (idiom); just in case
  2. prepared for any eventualities

CHARACTERS

以 yǐ by means of; thereby, therefore; consider as; in order to
防 fáng defend; prevent; embankment
万 wàn ten thousand; innumerable
一 yī one; a, an; alone