| rule of thumb n. pl. rules of thumb A useful principle having wide application but not intended to be strictly accurate or reliable in every situation. |
rule of thumb
n
a. a rough and practical approach, based on experience, rather than a scientific or precise one based on theory
b. (as modifier) a rule-of-thumb decision
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  rule of thumb - a rule or principle that provides guidance to appropriate behaviorrule, regulation - a principle or condition that customarily governs behavior; "it was his rule to take a walk before breakfast"; "short haircuts were the regulation" |
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