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Meaning of “rule of thumb” in the English Dictionary

"rule of thumb" in British English

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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.
(Definition of rule of thumb from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"rule of thumb" in American English

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rule of thumbnoun [C]

/ˈrul əv ˈθʌm/ plural rules of thumb
a method of judging a situation or condition that is not exact but is based on experience: As a rule of thumb, the ice on the lake should be at least two inches thick to support one person.
(Definition of rule of thumb from the Cambridge Academic Content Dictionary © Cambridge University Press)
Translations of “rule of thumb”
in Chinese (Simplified) 实用的估测方法, 经验之谈, 经验法则…
in Chinese (Traditional) 實用的估測方法, 經驗之談, 經驗法則…
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