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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
Principally
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Principally" is correct and usable in written English.
It is typically used to indicate that something is primarily or mainly the case, often in contrast to other factors or elements. Example: "The project was principally focused on improving community engagement and participation."
✓ Grammatically correct
News & Media
Formal & Business
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
Yes, it is principally about the soil, its fertility and the lack of chemicals and pesticides used, but it's also about "the unseen forces and energies of life and growth that permeate all living things".
News & Media
The questions economists seek to answer, the tools they use to help find the answers (that's principally maths, rather than the applied topics that research suggests women are drawn to), the standard assumptions they make along the way (that people are emotionless, free and selfish), and the things they choose to measure all reflect a traditional and stereotypical male way of looking at the world.
News & Media
British shareholders could also make money by investing in Indian infrastructure, principally the railways, where the Indian government attracted funds by guaranteeing returns on capital of 5% net per year.
News & Media
The Lib-Con partnership has been a very British phenomenon, cemented by personal relationships and the success of two party elites discovering sufficient personal chemistry and affinity of objective – principally on fiscal strategy – to keep the show on the road.
News & Media
Born in Birmingham and educated at Solihull school, in the West Midlands, he trained at the Birmingham School of Art in the 1950s before embarking on an architectural career that frequently took him abroad for long periods, principally to the Middle East and the far east.
News & Media
"It seems that growth has come principally from domestic demand, with consumption benefitting from the drop in energy prices and buoyant financial markets boosting confidence," said Vanden Houte.
News & Media
Owen Gibson Waris Dirie has done more than any other person to raise awareness about the dreadful practice of female genital mutilation (FGM), which potentially affects millions of women, principally in Africa and Asia but also increasingly in the UK and other west European countries.
News & Media
Only a few isolated voices – such as former cabinet ministers Laurent Wauquiez and Michel Rocard – argue in favour of a Brexit, the latter considering that Britain is principally to blame for the paralysis in European decision-making.
News & Media
The western Balkans is a notorious smuggling funnel for those desperate to get into an EU country, principally Hungary to the north or Bulgaria to the south.
News & Media
As emperor his duties are largely ceremonial, consisting principally of state visits and apologising to other Asian countries for Japan's wartime conduct.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
Yet the cuts he has promised principally an almost comically modest reduction in a fuel allowance for pensioners are so footling when set against Britain's huge public debt burden as to give the opposite of the impression intended.Enough differentiationThe popular explanation for this failure is ideological.
News & Media
Expert writing Tips
Best practice
Use "principally" to clearly indicate the main reason, factor, or aspect being discussed, especially when other secondary elements are present. For instance, "The company's success was principally due to its innovative marketing strategies."
Common error
Avoid using "principally" in sentences where a simpler word like "mainly" or "chiefly" would suffice. Overusing it can make your writing sound unnecessarily formal or stilted.
Source & Trust
94%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
Principally functions as an adverb, modifying a verb, adjective, or another adverb to indicate the primary or main aspect of an action or quality. As Ludwig AI confirms, the word is grammatically correct and usable in written English. The examples show it clarifying the most significant element in various contexts.
Frequent in
News & Media
54%
Formal & Business
23%
Science
23%
Less common in
Wiki
0%
Social Media
0%
Encyclopedias
0%
Ludwig's WRAP-UP
Principally is an adverb used to indicate the primary or main aspect of something. It's grammatically sound and widely used, as confirmed by Ludwig AI. The word appears most frequently in news and media, formal business, and scientific contexts. When writing, use "principally" to highlight the most important factor or reason, but avoid overuse in simple sentences where a word like "mainly" would suffice. Related phrases include "chiefly", "primarily", and "mainly". Remember, while correct, choosing a simpler word might sometimes improve clarity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
chiefly
Indicates the main or most important element, similar to "principally".
primarily
Highlights the foremost aspect or reason, akin to "principally".
mainly
Suggests the major part or extent, comparable to "principally".
in the main
Emphasizes the general or overall aspect, similar to "principally".
largely
Signifies a considerable degree or extent, close in meaning to "principally".
predominantly
Highlights the prevailing or dominant aspect, similar to "principally".
for the most part
Indicates the majority of something, similar to "principally" but less formal.
above all
Highlights the most important or significant aspect, similar to "principally" but more emphatic.
essentially
Indicates the fundamental or inherent nature, related to the core idea of "principally".
first and foremost
Emphasizes the initial and primary importance, similar to "principally" but more formal.
FAQs
How can I use "principally" in a sentence?
Use "principally" to indicate the main or primary reason for something. For example, "The project was "principally" funded by private donations."
What are some alternatives to the word "principally"?
What is the difference between "principally" and "especially"?
"Principally" means mainly or primarily, while "especially" means particularly or to a greater extent than usual. They are not interchangeable.
Is it correct to use "principally" at the beginning of a sentence?
Yes, it is grammatically correct to start a sentence with "principally". For example, "Principally, the new policy aims to reduce carbon emissions."
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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
94%
Authority and reliability
4.6/5
Expert rating
Real-world application tested