Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun rule_of_thumb

1 sense of rule of thumb

Sense 1
guidepost, guideline, rule of thumb -- (a rule or principle that provides guidance to appropriate behavior)
       => rule, regulation -- (a principle or condition that customarily governs behavior; "it was his rule to take a walk before breakfast"; "short haircuts were the regulation")