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
mainly in charge
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "mainly in charge" is correct and usable in written English.
It can be used to indicate that someone has primary responsibility or authority over a particular task or area, but not exclusively. Example: "In this project, Sarah is mainly in charge of coordinating the team and ensuring deadlines are met."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(4)
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
20 human-written examples
The new government's proposal is to "return" English planning not to the counties, mainly in charge since 1947, but to 368 lower-tier councils – a huge departure.
News & Media
(Nash occasionally works on the track as well, but he's mainly in charge of the singing, sometimes in concert with the artist whom the duo is writing for).
News & Media
But managed care companies, not government agencies, are now mainly in charge of determining eligibility, typically by using nurses to assess each potential member.
News & Media
The CIS fast architecture consists of a module called the plasma protection module (PPM), which is mainly in charge of interlock functions related to the plasma.
In 40 he held the post of praetor urbanus (magistrate mainly in charge of administration of justice at Rome) and was a major figure in negotiating a settlement between Octavian and Antony at Brundisium.
Encyclopedias
As a major in-vessel component of a tokamak-type fusion reactor, the divertor is mainly in charge of removal of particles and partial power exhaust via scrape-off layer.
Human-verified similar examples from authoritative sources
Similar Expressions
40 human-written examples
For households receiving the survey, we asked that those responding should be mainly those in charge of purchasing ingredients for meals and cooking.
Fosmire will leave his job as executive director of the Oceanside Museum of Art (OMA), a title he held for two years, to fill LAM's No. 2 slot, where he will mainly be in charge of development.
News & Media
Despite a mainly disastrous winter in charge, he will almost certainly be allowed to jump before he is pushed.
News & Media
In general, samples showed a charge imbalance mainly in favor of positive charge.
Science
The staff mainly saw the Medical Officer In-charge or the Head Nurse as being responsible for delivering feedback.
Science
Expert writing Tips
Best practice
When using "mainly in charge", ensure that the context clarifies what other individuals might also be involved in, even if to a lesser extent.
Common error
Avoid using "mainly in charge" when someone has complete and total responsibility. In such cases, phrases like "solely responsible" or "fully in charge" are more appropriate.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "mainly in charge" functions as a modifier, indicating the primary, but not exclusive, responsibility or control held by someone or something. Ludwig shows examples in various contexts, from describing roles within organizations to the functions of specific brain areas.
Frequent in
Science
43%
News & Media
37%
Encyclopedias
6%
Less common in
Formal & Business
6%
Wiki
2%
Social Media
0%
Ludwig's WRAP-UP
The phrase "mainly in charge" effectively conveys that someone has primary responsibility, but not exclusive control. Ludwig's analysis reveals that this phrase is grammatically correct and commonly used across diverse fields, including news, science, and encyclopedias. While "mainly in charge" is a versatile expression, remember that it is most suitable when outlining shared responsibilities. For situations requiring stronger emphasis, consider alternatives such as "primarily responsible" or "chiefly responsible".
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Primarily responsible
Emphasizes the degree of responsibility rather than control.
Chiefly responsible
Highlights the leadership aspect of the role.
Largely responsible
Focuses on the extent of the responsibility.
Mostly responsible
Similar to 'largely' but with a slightly less formal tone.
Predominantly in control
Stresses the aspect of control and authority.
Primarily controlling
Highlights action of controlling.
Principally responsible for
Focuses on the key area of responsibility.
Generally overseeing
Implies a broader supervisory role.
Mainly supervising
Emphasizes the supervisory aspect.
Predominantly managing
Highlights the act of management.
FAQs
What does "mainly in charge" mean?
The phrase "mainly in charge" indicates that someone has primary responsibility or control over something, but not exclusively. Others may also be involved, but this person has the leading role.
Are there synonyms for "mainly in charge"?
Yes, you can use alternatives such as "primarily responsible", "chiefly responsible", or "largely responsible" depending on the specific nuance you want to convey.
When is it appropriate to use "mainly in charge"?
Use "mainly in charge" when describing a situation where one person is the primary decision-maker or leader, but others may contribute or have supporting roles. Avoid using it when someone has absolute authority.
What is the difference between "mainly in charge" and "solely responsible"?
"Mainly in charge" implies shared responsibility, while "solely responsible" means that one person is entirely accountable without others sharing the responsibility.
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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested