rule of thumb
noun phrase
1
: a method of procedure based on experience and common sense
2
: a general principle regarded as roughly correct but not intended to be scientifically accurate
Examples of rule of thumb in a Sentence
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Downing seven to 10 ounces every 10 to 20 minutes is a solid rule of thumb, according to both the American Council on Exercise and the National Athletic Trainers’ Association, as SELF has previously reported.
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Caroline Tien, SELF, 8 Oct. 2025
Arriving early is always a smart rule of thumb for travelers—and not just to the airport.
—Kayla Becker, Travel + Leisure, 2 Oct. 2025
The rule of thumb is to be at least one foot away from all other objects that can burn.
—Staff Author, Verywell Health, 29 Sep. 2025
Because as temperatures drop and the leaves change, so does the rule of thumb.
—Andrew Callahan, Boston Herald, 25 Sep. 2025
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Caroline Tien, SELF, 8 Oct. 2025
Arriving early is always a smart rule of thumb for travelers—and not just to the airport.
—Kayla Becker, Travel + Leisure, 2 Oct. 2025
The rule of thumb is to be at least one foot away from all other objects that can burn.
—Staff Author, Verywell Health, 29 Sep. 2025
Because as temperatures drop and the leaves change, so does the rule of thumb.
—Andrew Callahan, Boston Herald, 25 Sep. 2025
See All Example Sentences for rule of thumb
Cite this Entry
“Rule of thumb.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rule%20of%20thumb. Accessed 16 Oct. 2025.
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