Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
primary ground for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "primary ground for" is correct and usable in written English.
It can be used to refer to the main reason, argument, or justification for something. For example: "The primary ground for their appeal was their argument that the court's decision was unconstitutional."
✓ Grammatically correct
News & Media
Science
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
2 human-written examples
The primary ground for the Ninth Circuit's opinion is that "the Government has not shown that the Executive Order provides what due process requires, such as notice and a hearing prior to an individual's ability to travel".
News & Media
In India, offense has become the primary ground for censors to shut up the kind of speech they just don't like, especially when that speech comes from the mouths of foreigners.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Nevertheless, the primary grounds for Fisher-Hoch's dismissal, cited in a 28 June letter to her from the foundation, are that she spoke with journalists about the foundation's decision to replace her as director.
Science & Research
Writing for the majority, Justice Anthony Kennedy cited the Fifth Amendment's guarantee of equal protection as the primary grounds for overturning DOMA -- and this is exactly as it should be, so kudos to Kennedy and his concurring cohorts.
News & Media
The primary ground station used for the experiment is the 64-m antenna of Usuda Deep Space Center UDSCC) of JAXA, which is located at 138°21′54″ East longitude, 36°07′44″ North latitude.
Science
The primary ground based model used has been hindlimb unloading of rodents, which is similar to the chronic bed-rest model for humans.
Science
They also say the area is the primary breeding ground for the area's mosquitoes.
News & Media
They say the rebels, known as Houthis, are surrounding the Iman University, an institution long viewed as a primary breeding ground for militants.
News & Media
In fact, if you have to choose the primary breeding ground for the various business misdeeds now consuming national attention, New York, I'm afraid, is the place.
News & Media
The proposal would allow commercial whaling of fin and other endangered whales in the Southern Ocean whale sanctuary, a vast area around Antarctica which is the primary feeding ground for many whale species.
News & Media
Opened in Panama in 1946 and moved to its current location at Fort Benning, Ga., in 1984, the school has been the primary training ground for more than 60,000 Latin American military and police.
News & Media
Expert writing Tips
Best practice
When using "primary ground for", ensure that it clearly indicates the most important reason, as opposed to secondary or less significant justifications.
Common error
Avoid using "primary ground for" when the reason is not definitively the most important, as it can weaken your argument if other factors are equally or more influential.
Source & Trust
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "primary ground for" functions as a prepositional phrase identifying the most important reason or justification. It introduces the core argument or basis upon which a claim or action is founded, as supported by Ludwig's examples.
Frequent in
News & Media
60%
Science
30%
Formal & Business
10%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "primary ground for" is a grammatically correct phrase used to denote the most important reason or justification for something. Ludwig AI's analysis confirms its validity. It is most frequently found in news and scientific contexts and is generally considered appropriate for neutral to formal writing. When using this phrase, ensure it accurately represents the most significant reason and avoid overstating its importance if other factors are equally influential. Consider alternative phrases like "main justification for" or "key reason for" to add variety to your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
main justification for
Replaces "ground" with "justification", emphasizing a defense or reason for an action or belief.
key reason for
Substitutes "ground" with "reason", highlighting the importance of the cause.
principal basis for
Uses "basis" instead of "ground", focusing on the foundation or support for something.
chief cause of
Replaces the entire phrase to focus on the origin or source of an event or situation.
fundamental reason behind
Emphasizes the depth and foundational nature of the reason.
core motive for
Focuses on the driving force or intention behind an action.
primary impetus for
Highlights what propelled or initiated something.
essential element of
Shifts the focus to a necessary component rather than a direct reason.
mainspring of
Uses a more figurative term to describe the underlying cause or motivation.
underlying rationale for
Highlights the logical explanation or justification beneath the surface.
FAQs
How can I use "primary ground for" in a sentence?
You can use "primary ground for" to introduce the main reason or justification for something, like in this example: "The "primary ground for" the appeal was the court's misinterpretation of the law".
What phrases are similar to "primary ground for"?
Similar phrases include "main justification for", "key reason for", and "principal basis for".
Is "primary ground for" formal or informal?
"Primary ground for" is suitable for both formal and neutral contexts. Its appropriateness depends on the surrounding vocabulary and overall tone of the writing.
When is it better to use "primary reason" instead of "primary ground for"?
While "primary reason" and "primary ground for" are often interchangeable, "primary ground for" may be preferred when referring to a more formal or legalistic justification. Consider that you can also use the alternative "primary reasons for".
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.1/5
Expert rating
Real-world application tested