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rule of thumb

 

Definitions from WordNet

Noun rule of thumb has 1 sense
  1. guidepost, guideline, rule of thumb - a rule or principle that provides guidance to appropriate behavior
    --1 is a kind of rule, regulation

Definitions from the Web

Term: Rule of Thumb

Description:

The term "rule of thumb" refers to a practical principle that is based on experience or empirical knowledge, providing a general guideline rather than an exact measurement or precise rule.

Sense 1:

Part of Speech: Noun

1. A widely known and accepted guideline or method for estimating or making a quick calculation.

Sample Sentence: When baking, a common rule of thumb is to use a 2:1 ratio of flour to butter for a basic shortbread.

Sense 2:

Part of Speech: Idiom

1. A commonly used phrase representing a general principle or approach.

Sample Sentence: As a general rule of thumb, it is wise to save at least 20% of your monthly income for future emergencies and investments.

Sense 3:

Part of Speech: Historical Origin

1. The term "rule of thumb" historically referred to an old English law where a man was allowed to beat his wife with a stick, the diameter of which should not exceed that of his thumb. This sense is no longer used.

Sense 4:

Part of Speech: Adjective

1. Describing something that is generally accepted as a useful guideline or standard practice.

Sample Sentence: The rule of thumb approach is a convenient starting point for estimating the cost of a home renovation project.

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