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 While there's no universal dosage, a good rule of thumb is to start slow and work your way up. Amber Smith, Discover Magazine, 3 Apr. 2024 Using the rule of thumb to withdraw 4% of one's retirement savings annually, a nest egg of $1.46 million would result in about $58,400 in annual income. Aimee Picchi, CBS News, 2 Apr. 2024 My team tested this rule of thumb in 2014, 2021, and 2023; the numbers still appeared to work. Wes Moss, Forbes, 28 Feb. 2024 Prepare financially According to experts, a good rule of thumb is to set aside three to six months of living expenses. Caroline Castrillon, Forbes, 25 Feb. 2024 Before productivity began its resurgent growth last year, a rule of thumb was that average hourly pay could rise no more than 3.5% annually for inflation to stay within the Fed’s 2% target. Paul Wiseman, Quartz, 21 Feb. 2024 While bleeding will decrease over time, a good rule of thumb is to calculate an average of three pairs of disposable underwear for the first week postpartum. Laura Lu, Ms, Parents, 21 Mar. 2024 The One-Third Rule is typically a valuable rule of thumb. Wes Moss, Forbes, 28 Feb. 2024 Invitations, bills and tips go hand in hand One rule of thumb is that the person who invites someone on a date should pay the tab, including gratuity. Megan Cerullo, CBS News, 14 Feb. 2024

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 20 Apr. 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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