rule of thumb definition, meaning - what is rule of thumb in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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English definition of “rule of thumb”

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rule of thumb

C1 a practical and approximate way of doing or measuring something: A good rule of thumb is that a portion of rice is two handfuls.
Translations of “rule of thumb”
in Chinese (Traditional) 實用的估測方法, 經驗之談, 經驗法則…
in Chinese (Simplified) 实用的估测方法, 经验之谈, 经验法则…
(Definition of rule of thumb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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