Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
 
Advanced Dictionary    
Display options
 
Lookup History
rule of thumb

rule of thumb

 
pronunciation:
rul v thuhm
part of speech: noun
definition 1: a general rule or method based on practical experience rather than scientific proof.
definition 2: a general principle that is practical but not scientifically accurate.