Definition of "rule-of-thumb" [rule-of-thumb]

• Alternative form of rule of thumb. (noun)

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• "She went into service early, and while yet a young woman, by rule-of-thumb progression, she became a lady's maid."
• "Anyway, at the end of the day, the above is only a rough rule-of-thumb; ultimately the price is going to be what's set for orders or what's quoted for requests."
• "If that is not the case, this will break a long-standing rule-of-thumb for the DC journalist elites."