以防萬一 [－－万－]

Jyutping ji5 fong4 maan6 jat1
Pinyin yǐ fáng wàn yī

Definitions (CC-CEDICT)
  1. to guard against the unexpected (idiom); just in case
  2. prepared for any eventualities
Definitions (粵典–words.hk)
  1. 語句
    預防​或者​為​緊​急情​況作​準備
    to prepare for any emergency; in case of
    • 今日都係帶埋把遮出街，以防萬一落雨。
      今日都系带埋把遮出街，以防万一落雨。
      gam1 jat6 dou1 hai6 daai3 maai4 baa2 ze1 ceot1 gaai1, ji5 fong4 maan6 jat1 lok6 jyu5.
      I should also bring an umbrella with me, in case it rains.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to protect against a contingency; just in case
Examples (粵典–words.hk)
  1. Cantonese
    以防万一
    以防萬一
    ji5 fong4 maan6 jat1
    • to provide against contingency
  2. Cantonese
    今日都系带埋把遮出街，以防万一落雨。
    今日都係帶埋把遮出街，以防萬一落雨。
    gam1 jat6 dou1 hai6 daai3 maai4 baa2 ze1 ceot1 gaai1, ji5 fong4 maan6 jat1 lok6 jyu5.
    • I should also bring an umbrella with me, in case it rains.
Examples (Wiktionary)
  1. Mandarin
    以防万一
    以防萬一
    yǐ fáng wàn yī
    • just in case (literally, “to protect against a contingency”)