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English definition of “knock on wood”

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knock on wood

US ( UK touch wood) informal
said in order to avoid bad luck, either when you mention good luck that you have had in the past or when you mention hopes you have for the future: The deal will be agreed on Wednesday, knock on wood.
Translations of “knock on wood”
in Chinese (Traditional) 老天保佑…
in Chinese (Simplified) 老天保佑…
(Definition of knock on wood from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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