Idiom · B2 · Neutral · everyday advice and professional judgment
rule of thumb
ROOL uv THUM Stress rule and thumb. The b in thumb is silent.
A practical, approximate guideline based on experience rather than an exact calculation or a strict requirement.
praktično, okvirno pravilo zasnovano na iskustvu
Use it
As a rule of thumb, I pack one spare layer when hiking.
Experience guides the decision, but conditions may require more.
A useful rule of thumb is to explain the result before the background.
A general writing guideline can have sensible exceptions.
Build the sentence
As a rule of thumb, + guideline · a useful rule of thumb is to + verb
Memory scene
Your thumb gives a rough estimate, not a calibrated measurement. Useful guidance leaves room for exceptions.
Watch out
Use a rule of thumb, not a rule of the thumb. It is approximate guidance, not a guarantee, law, or precise formula. Do not use it to make an unsupported claim sound scientifically established.
Nearby language
A broader recommendation that need not be based on rough practical estimation.
A strict rule with little or no room for exceptions.
A recommended method for good results rather than necessarily an approximate shortcut.
Make it yours
Iz iskustva savetujete da se za nepoznat put ostavi dodatno vreme, ali to nije strogo pravilo.