Idioms title

The Idiom Attic - a collection of hundreds of English idioms, each one explained.

The meaning of "rule of thumb"

" Rule of thumb "
A rough estimate.
I've no tape measure with me but I'd say, as a rule of thumb, that building is twelve metres high.
Where did it originate?:
Britain, 1600s. Not, as is often thought, derived from the size of stick a man was permitted to beat his wife with.
Where is it used?:
Hear the idiom spoken:
More idioms about:   the_human_body  

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