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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
principal theme
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "principal theme" is grammatically correct and commonly used in written English.
You can use it to refer to the main or most important idea or topic in a sentence, paragraph, or text. For example: - The principal theme of the book is the struggle for power and control. - The principal theme of the speech was the importance of education. - In his essay, the author explores the principal theme of identity and belonging. - The principal theme of the movie is the value of friendship and teamwork.
✓ Grammatically correct
News & Media
Encyclopedias
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
59 human-written examples
Even as his plays changed and grew, that continued as a principal theme.
News & Media
"The principal theme of the album is changing one's mentality," Mr. Bagayoko said.
News & Media
But often his principal theme seemed to be taunting the United States.
News & Media
But the principal theme, as usual, was identity: who Don is, was, and will be.
News & Media
That these two policy areas were intimately connected is Sandbrook's principal theme.
News & Media
His "strenuous homeland," as he likes to call it, is the principal theme of his literature.
News & Media
Gyllensten's principal theme in his novels is the subjective and relative nature of man's perception of truth.
Encyclopedias
A principal theme of medieval pornography was the sexual depravity (and hypocrisy) of monks and other clerics.
Encyclopedias
Striking the balance between reining in deficits without harming growth was the principal theme at the meeting here.
News & Media
The principal theme of his new post is bound to be his management of an Irish economy that is slowing down following years of phenomenal growth.
News & Media
There were other lovely moments from the strings, especially in the sighing principal theme of the first movement and its offshoot in the second.
News & Media
Expert writing Tips
Best practice
When analyzing literature or art, use "principal theme" to identify the central, recurring idea that the work explores. It provides a clear and concise way to articulate the main focus of your analysis.
Common error
Avoid mistaking supporting ideas or minor motifs for the "principal theme". Ensure the identified theme is consistently and centrally present throughout the work being analyzed.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "principal theme" functions as a noun phrase identifying the central and most important topic or idea within a discourse, artistic work, or subject matter. Ludwig showcases its use in diverse contexts, indicating its grammatical correctness and versatility.
Frequent in
News & Media
34%
Encyclopedias
22%
Science
17%
Less common in
Wiki
15%
Formal & Business
7%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "principal theme" is a grammatically correct and frequently used noun phrase that identifies the main subject or core idea. Ludwig confirms its widespread use across diverse sources, including news, encyclopedias, and scientific publications. The phrase functions to clearly convey the central topic, and its usage is most appropriate in neutral to formal registers. Alternative phrases include "main subject" or "central idea". When using the phrase, ensure you are accurately identifying the central recurring concept and not a secondary element.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
core theme
Emphasizes the essential aspect of the theme.
overarching theme
Highlights the theme's comprehensive or all-encompassing nature.
central idea
Highlights the core concept, downplaying the broader scope.
primary focus
Highlights the area of concentration, rather than the underlying theme.
main subject
Focuses on the core topic, omitting the thematic nuance.
key concept
Stresses the importance as a fundamental element.
major topic
Emphasizes the importance of the topic, less on its overarching nature.
chief topic
Uses 'chief' to denote primary importance, differing in tone.
dominant motif
Implies a recurring element, more often used in artistic contexts.
major premise
Highlights the foundational proposition, typically in logical arguments.
FAQs
How can I identify the "principal theme" of a text?
Look for the recurring idea, concept, or message that the author emphasizes throughout the work. The "principal theme" is often central to the narrative's conflict, character development, and resolution.
What are some alternatives to the phrase "principal theme"?
Depending on the context, you can use alternatives such as "central idea", "main subject", or "core theme" to convey a similar meaning.
Is there a difference between a "principal theme" and a 'motif'?
Yes, while both are recurring elements, a "principal theme" is the central idea or message, whereas a motif is a recurring symbol, image, or idea that supports or illustrates the theme. A motif is a subset of a "principal theme".
How do I use "principal theme" in a sentence?
You can use "principal theme" in a sentence like this: "The "principal theme" of the novel is the struggle between good and evil" or "The speaker's "principal theme" was the need for social justice".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested