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rule of thumb

NOUN
informal guiding principle
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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Thom Bettridge, an editor and writer in New York, has a rule of thumb: he only buys gifts that are smaller than a breadbox, to minimize the space that they take up in hosts’ homes.

From The Wall Street Journal Sep. 14, 2026

"Always ask, would you put the same thing in an email?" he says, as a rule of thumb.

From BBC Aug. 17, 2026

If you feel compelled to comment on a famous woman’s body, a good rule of thumb to remember is “don’t.”

From Slate Aug. 6, 2026

The production’s rule of thumb became trying to execute scenes practically, in front of a lens, wherever possible.

From Los Angeles Times Jul. 30, 2026

“The rule of thumb is that you buy at ten and sell at twenty.”

From "The Big Short" by Michael Lewis




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