false friend

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌfalse ˈfriend noun [countable]  1. a word in a foreign language that is similar to one in your own, so that you wrongly think they both mean the same thing 〔外语中与母语相似的〕同形异义词2. someone who seems to be your friend but is not 不忠实的朋友

Examples from the Corpus

false friend• We feel sympathy for the hero who is led astray under the influence of his false friend.

ˌfalse ˈfriend nounChineseSyllable  

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false friend
ˌfalse ˈfriend noun [countable]
1. a word in a foreign language that is similar to one in your own, so that you wrongly think they both mean the same thing
2. someone who seems to be your friend but is not

false friendBrE /ˌfɔːls ˈfrend/ 🔊NAmE /ˌfɔːls ˈfrend/ 🔊 nouna person who seems to be your friend, but who is not loyal and cannot be trusted 不忠实的朋友a word in a foreign language that looks similar to a word in your own language, but has a different meaning （与某外国语的）同形异义词◆The English word 'sensible' and the French word 'sensible' are false friends. 英语的 sensible 一词和法语的 sensible 一词同形异义。🔊🔊