rule of thumb

USAGE SUMMARY

The phrase "rule of thumb" is correct and usable in written English.
It is generally used as a proverb to describe a practical method or guideline for dealing with a particular situation. For example, you could say "The rule of thumb for a good presentation is to keep it short and to the point."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

56 human-written examples

Ono's rule of thumb?

Harvard Business Review

That rule of thumb has been debunked.

The New York Times

Rule of thumb: wider lapels, wider brim.

The New York Times

It's a rule of thumb.

The New York Times

Rule of thumb: add 5-105-10%

Cornell University

That's always been my rule of thumb.

Massachusetts Institute of Technology

But it's a good rule of thumb.

Harvard Business Review

Human-verified similar examples from authoritative sources

Similar Expressions

4 human-written examples

Rule-of-thumb: Two years.

HuffPost

Rudeness is their rule-of-thumb.

HuffPost

As a rule-of-thumb this limit is at zero.

Acta Veterinaria Scandinavica

Rule of thumb--1 tbsp.

WikiHow

Expert writing Tips

Best practice

When using "rule of thumb", ensure the context clearly indicates that you're referring to a general guideline or approximation, not a strict rule.

Common error

Avoid presenting a "rule of thumb" as an absolute law. Clearly indicate it's a guideline that may not apply in all situations.

How to use

Learn how to use "rule of thumb" with practical examples and tips.

How to use

Linguistic Context

The phrase "rule of thumb" functions as a noun phrase, serving as a general guideline or principle based on practical experience. As Ludwig AI indicates, it describes a method that is not precise but useful for estimation. Examples show its use across various domains.

Expression frequency: Very common

Frequent in

News & Media

39%

Academia

23%

Science

11%

Less common in

Formal & Business

8%

Wiki

15%

Reference

4%

Ludwig's WRAP-UP

The phrase "rule of thumb" is a common and accepted idiom used to describe a general guideline or practical method, often based on experience. As Ludwig AI highlights, it is grammatically correct and widely used across various contexts, including news, academia, and science. While it's not a strict rule, it provides a useful approximation for quick decision-making. When using "rule of thumb", be mindful that it indicates a guideline rather than an absolute principle. Related phrases, such as "practical guideline" and "general principle", offer similar meanings with slight nuances that can be used depending on the specific context.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

practical guideline

Emphasizes the utility and real-world application of the guidance.

common sense approach

Underscores the intuitive and readily understandable nature of the guidance.

general principle

Focuses on the foundational aspect of a guideline, moving away from the experiential connotation.

approximate method

Emphasizes that the alternative is related to an estimated solution.

basic principle

Stresses the fundamental nature of the guideline, often in a learning or instructional context.

rough estimate

Highlights the approximate nature of the calculation or judgment.

useful shortcut

Highlights the efficiency and time-saving aspect of the guideline.

working hypothesis

Frames the guideline as a starting point for further investigation or refinement.

heuristic approach

Presents a more formal and academic alternative, suitable for technical or theoretical discussions.

empirical formula

Suggests a formula derived from observation, suitable for scientific or mathematical contexts.

FAQs

How can I use "rule of thumb" in a sentence?

You can use "rule of thumb" to describe a general guideline or practical method, such as: "As a "general rule", you should save 15% of your income, but the actual amount depends on your individual circumstances."

What phrases can I use instead of "rule of thumb"?

Alternatives include "practical guideline", "general principle", or "rough estimate", each emphasizing different aspects of the approximation.

Is it appropriate to use "rule of thumb" in formal writing?

While "rule of thumb" is widely understood, consider using more formal alternatives like "heuristic approach" or "working hypothesis" in academic or professional contexts.

What's the origin of the phrase "rule of thumb"?

The origin is debated, but it generally refers to a practical and easily remembered principle, often based on experience rather than precise measurement.