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Definitions

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.

A common rule of thumb for builder investors is buy the stocks when they trade at one-times book value and sell at two-times book value.

From Barron's • Apr. 12, 2026

A rule of thumb on an oil shock applies here: gas prices shoot up quickly, but come down slowly.

From The Wall Street Journal • Apr. 8, 2026

Is there a rule of thumb or a percentage of income at which entertainment spending starts to meaningfully impact long-term goals?

From MarketWatch • Mar. 27, 2026

The rule of thumb when buying or selling property is to wait five years to cover your closing costs, which can be considerable.

From MarketWatch • Mar. 17, 2026

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

From "The Big Short" by Michael Lewis