JustInCaseとは 意味・読み方・使い方

発音

• (Received Pronunciation, 米国発音) IPA: /ˌdʒʌst ɪn ˈkeɪs/

副詞

just in case (not comparable)

1. (informal) To provide for a possible event as a precaution.

   Synonym: to be on the safe side

   I'll take an umbrella, just in case.

接続詞

just in case

1. To provide for the possible event that.

   Synonym: in the event that

   I'll take an umbrella, just in case it rains.

   • 1629, Roger Williams et al., The Correspondence of Roger Williams, Brown University Press (reprinted 1988, →ISBN, page 204,

     Dudley and his council "gave no credit to these suspicions" but decided to strengthen the colony's defenses just in case the rumors turned out to be true.

   • 1981, John H. G. Pell, "General George Washington's Visit to Fort Ticonderoga in July 1783", Bulletin of the Fort Ticonderoga Museum, Volume XIV, Number 1, Summer 1981, Fort Ticonderoga Museum, page 260,

     Throughout 1782 and most of 1783 there was a mixture of defacto [sic] peace but preparedness for war just in case it should be resumed, a sort of cold war.

2. (logic) Synonym of if and only if.

   The negation of a disjunction is true just in case both disjuncts are false.

使用する際の注意点

• Synonymous with in case, but with the possibility of the occurrence being more remote.