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

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The rule of thumb is that your urine should be clear in color. Nicole Villalpando, Austin American-Statesman, 19 Dec. 2024 This is a rule of thumb often cited by financial planners. Greg Iacurci, CNBC, 13 Dec. 2024 Sticking to vases under six inches is a good rule of thumb to prevent your centerpieces from blocking conversation and eye contact. Tessa Cooper, Southern Living, 12 Dec. 2024 The rule of thumb people typically followed was the two-month salary guideline—which was created during the Great Depression, when diamond sales weren't doing too well and De Beers, a leading diamond company, sought to improve the situation. Gia Yetikyel, Vogue, 3 Dec. 2024 See all Example Sentences for rule of thumb 

Word History

First Known Use

circa 1658, in the meaning defined at sense 1

Time Traveler
The first known use of rule of thumb was circa 1658

Dictionary Entries Near 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 23 Dec. 2024.

Kids Definition

rule of thumb

1
: a method based on experience and common sense
2
: a general principle that is roughly correct
Last Updated: - Updated example sentences
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