principal reason for

USAGE SUMMARY

The phrase "principal reason for" is correct and usable in written English.
You can use it to indicate the main cause or motivation behind something. Example: "The principal reason for the project's success was the team's dedication and hard work."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

The principal reason for withdrawing is to save money.

The New Yorker

"Karen's principal reason for being in Afghanistan was to help people by using her medical skills.

The Guardian

Unexplained symptoms are the principal reason for more than 100 million doctor visits a year.

The New York Times - Health

And their principal reason for remaining offline is not cost, but rather perceived irrelevance.

The New York Times

That commitment had been our principal reason for trying to avoid layoffs.

Harvard Business Review

Trump is the principal reason for the GOP's woeful performance in competitive suburban House districts.

The Washington Post

A water-intensive crop, ghat was a principal reason for the desertification of the country.

The New York Times - Books

That is the principal reason for a full-scale re-examination by a respected public body.

The New York Times

A principal reason for this was that negatives frequently changed hands.

The New York Times - Arts

Over time, however, the principal reason for a declining rate is something else entirely.

The New York Times

Strikes and warnings of more to come have been a principal reason for gloom.

The New Yorker

Expert writing Tips

Best practice

When using the phrase "principal reason for", ensure that the context clearly supports the idea that this reason is, indeed, the most significant one. If multiple reasons are equally important, consider using "main reasons for" or "key reasons for" instead.

Common error

While "principal reason for" is grammatically correct, it can sound overly formal in casual conversation or informal writing. In such cases, consider using simpler alternatives like "main reason" or "biggest reason" to maintain a natural tone.

Linguistic Context

The phrase "principal reason for" functions as a noun phrase that introduces the most important cause or justification for a particular situation or event. As Ludwig AI confirms, it's a grammatically correct and readily usable phrase.

Expression frequency: Very common

Frequent in

News & Media

45%

Science

35%

Formal & Business

15%

Less common in

Encyclopedias

2%

Reference

2%

Social Media

1%

Ludwig's WRAP-UP

The phrase "principal reason for" is a grammatically sound and frequently used expression to highlight the primary cause or justification for something, as confirmed by Ludwig AI. Predominantly found in news, science, and formal business contexts, it maintains a formal and neutral tone. While versatile, it’s best suited for situations where emphasis and precision are needed. Alternatives include "main reason for", "primary reason for", and "chief reason for", depending on the desired nuance. Remember to use it judiciously in informal settings to avoid sounding overly formal. The phrase is common, making it appropriate for various writing scenarios that call for a clear and authoritative explanation.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

main reason for

Focuses on the primary cause or justification, similar to the original phrase but slightly less formal.

primary reason for

Emphasizes the foremost cause, synonymous with "principal reason for".

chief reason for

Highlights the most important reason, similar in emphasis but can sound slightly more emphatic.

leading reason for

Indicates the reason that takes precedence over others; suggests a ranking.

major reason for

Implies a significant reason, though not necessarily the only one.

key reason for

Highlights the essential or crucial aspect that explains something.

fundamental reason for

Stresses the underlying, basic cause or rationale.

underlying reason for

Suggests a less obvious, but influential, cause.

the reason why

A more general way to introduce the explanation for something.

the motivation behind

Shifts the focus to the driving force or incentive, rather than the direct cause.

FAQs

How can I use "principal reason for" in a sentence?

Use "principal reason for" to introduce the most significant cause or justification for something. For example: "The "principal reason for" the project's delay was a lack of funding."

What are some alternatives to "principal reason for"?

You can use alternatives like "main reason for", "primary reason for", or "chief reason for" depending on the context. They all serve to highlight the most important factor.

Is it better to use "principal" or "primary" reason?

Both "principal reason" and "primary reason" are correct and can be used interchangeably. "Principal" is often considered slightly more formal than "primary."

What's the difference between "principal reason" and "underlying reason"?

"Principal reason" refers to the main and most obvious cause. "Underlying reason", on the other hand, refers to a less obvious, but still influential, cause.