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
a main thing
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a main thing" is correct and usable in written English.
It can be used to refer to an important or primary aspect of a situation or topic. Example: "When planning the event, the main thing to consider is the budget."
✓ Grammatically correct
Science
News & Media
Wiki
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
7 human-written examples
Nowadays, resource recovery is a main thing, especially water resource is very important in all types of industries.
Science
But it's critical, Whitmore wrote".Yes, the small things need attention, lest they become a main thing.
News & Media
Sign up now to get the best of VICE CanaDo delivered straight to your inbox.
News & Media
Being understood by friends was felt to be important: Well luckily the people that come to look after me as it were, they know that I can get - it does, it makes you irritable because it's painful and it's - it's uncomfortable and you want to go to the loo but you know that simply just by getting up and shuffling to the loo, it's like going to be a main thing to do.
Science
(Mandy) Well luckily the people that come to look after me as it were, they know that I can get - it does, it makes you irritable because it's painful and it's - it's uncomfortable and you want to go to the loo but you know that simply just by getting up and shuffling to the loo, it's like going to be a main thing to do.
Science
You can try to start using your bum as a main thing in this dance.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
50 human-written examples
"This is a pretty main thing – Webs used to be ad-supported.
News & Media
To make sure the person has obtained just the right location (for business' that have multiple locations with the same name), this address is a pertinent main thing to look for, and thereby is the reason why Yelp requires it.
Wiki
"But then I found out that when you get married, and you're living with a person for 24 hours a day, the main thing is communication.
News & Media
In a recession, the main thing preventing businesses from expanding capacity isn't the prohibitive cost but a lack of demand.
News & Media
This thing of being a hero, aboutthe main thing to do is to know when to die.
News & Media
Expert writing Tips
Best practice
When using "a main thing", ensure the context clearly defines what that main thing is, avoiding ambiguity.
Common error
Avoid overusing "a main thing" in close proximity within your writing. Vary your language by using synonyms such as "a primary concern" or "a key element" to maintain reader engagement.
Source & Trust
81%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a main thing" functions as a noun phrase. It identifies and emphasizes a particular aspect, consideration, or element as being of primary importance or significance in a given context. The phrase is used to draw attention to the most crucial element under discussion.
Frequent in
News & Media
43%
Science
29%
Wiki
28%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "a main thing" is a valid and useful phrase for emphasizing the primary importance of something. As Ludwig AI indicates, it is grammatically correct and functions effectively in various contexts. While synonyms like "a key element" or "a primary concern" can offer variety, "a main thing" provides a clear and direct way to highlight what matters most. Although the phrase is not overly common, appearing infrequently, its usage is straightforward and generally neutral, making it suitable for a range of communicative purposes.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a central aspect
Focuses on the core element or feature of something.
a key element
Highlights the importance of an individual component.
a primary concern
Emphasizes what is most worrying or significant.
a major factor
Indicates a significant influence or cause.
a critical point
Stresses the importance of a specific detail or moment.
a crucial element
Highlights an essential or decisive component.
a vital component
Emphasizes that an element is necessary and essential.
a chief priority
Indicates the most important task or objective.
a leading consideration
Highlights the most important aspect to take into account.
an essential aspect
Underscores the necessity of a particular feature.
FAQs
How can I use "a main thing" in a sentence?
You can use "a main thing" to highlight the most important aspect or consideration in a given situation. For example, "When planning a vacation, "budget" is a main thing to consider".
What are some alternatives to "a main thing"?
Alternatives include "a key element", "a primary concern", or "a major factor", depending on the specific nuance you wish to convey.
Is it better to say "the main thing" or "a main thing"?
Both phrases are grammatically correct, but "the main thing" implies that there is only one primary element, while "a main thing" suggests one of several important aspects. The choice depends on the context.
What is the difference between "a main thing" and "an important thing"?
"A main thing" emphasizes centrality or primary importance, whereas "an important thing" simply indicates significance. The former carries a stronger sense of prioritization.
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
81%
Authority and reliability
4.3/5
Expert rating
Real-world application tested