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 In any industry, there are general guidelines often referred to as rules of thumb. Andrew Rosen, Forbes, 12 Sep. 2024 Nguyen says the rule of thumb most chefs follow is to leave bacon grease in the freezer for up to a year. Stacey Lastoe, Southern Living, 10 Sep. 2024 As a rule of thumb, start with the lowest dose and increase gradually if necessary. Elizabeth Barnes, Verywell Health, 10 Sep. 2024 My rule of thumb is 10 liters of space for every three hours of hiking, but REI also has this handy How to Choose a Backpack guide. Katie Jackson, Travel + Leisure, 8 Sep. 2024 See all Example Sentences for rule of thumb 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'rule of thumb.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 28 Sep. 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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