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
is their responsibility
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is their responsibility" is correct and usable in written English.
You can use it to indicate that a particular duty or obligation falls upon a specific group or individual. Example: "Ensuring the safety of the children is their responsibility as caregivers."
✓ Grammatically correct
News & Media
Formal & Business
Science
Wiki
Alternative expressions(16)
they are accountable
the onus is on them
they are in charge
is their sin
rests on their shoulders
is their logic
is their choice
is their charm
is their Mystery
lies on their shoulders
problems on their shoulders
responsibilities on their shoulders
ties on their shoulders
they bear the burden
falls upon them
the choice is theirs
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
60 human-written examples
"It is their responsibility.
News & Media
This is their responsibility," he said.
News & Media
But it is their responsibility," he said.
News & Media
Anything they do is their responsibility.
News & Media
"Everything that happened on the show is their responsibility.
News & Media
"It is their responsibility to ensure only appropriate comments are used".
News & Media
Whatever Paul does and whatever Darren does at Aston Villa is their responsibility.
News & Media
The fisherman argues that now they've taken him in, he is their responsibility.
News & Media
He added, "If others want to play other things, that is their responsibility".
News & Media
Auditors have disclaimed that it is their responsibility to detect fraud.
News & Media
It is their responsibility to judge the accuracy of vote counts.
News & Media
Expert writing Tips
Best practice
When using "is their responsibility", ensure it's clear who 'their' refers to, avoiding ambiguity. For example, instead of "It is their responsibility to fix the issue", specify "It is the engineering team's responsibility to fix the issue".
Common error
Avoid assuming that "is their responsibility" encompasses all tasks related to a topic. Define the specific boundaries. Instead of broadly stating "It is their responsibility to manage the project", clarify "It is their responsibility to manage the project's budget and timeline".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is their responsibility" functions as a predicate nominative, identifying the subject with a duty or obligation. Ludwig AI shows this usage is common across various contexts, clearly assigning accountability.
Frequent in
News & Media
40%
Formal & Business
20%
Wiki
15%
Less common in
Science
10%
Academia
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "is their responsibility" is a common and grammatically sound way to assign accountability, as validated by Ludwig AI. It frequently appears in News & Media and Formal & Business contexts, indicating its versatility. When using this phrase, ensure clarity by specifying who 'their' refers to and defining the scope of the responsibility. Alternatives like "it is their duty" or "they are accountable" can be used for varying degrees of formality. This phrase is powerful for establishing clear expectations and roles in diverse scenarios.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
it is their duty
Replaces "responsibility" with "duty", emphasizing a moral or legal obligation.
it is their obligation
Substitutes "responsibility" with "obligation", highlighting a binding requirement.
they are accountable
Highlights that they will be held to account for the results or consequences.
they bear the responsibility
Emphasizes the act of accepting the "responsibility" from someone or some group of people.
it is their role
Focuses on the expected function or part someone plays.
it falls to them
Highlights the act of assigning "responsibility" to someone or some group of people.
it is their task
Replaces "responsibility" with "task", emphasizing a specific piece of work to be done.
the onus is on them
Highlights that the burden or obligation rests with them.
it is their concern
Shifts the focus to something that should be of importance or worry to them.
they are in charge
Emphasizes authority and control over a situation or task.
FAQs
How can I rephrase "is their responsibility" to sound more formal?
In more formal contexts, consider using phrases like "it is their duty", "it is their obligation", or "they are accountable". These alternatives emphasize a binding commitment.
What's a less formal way to say "is their responsibility"?
For less formal situations, you might use phrases like "it's up to them" or "they're in charge of it". These options convey the same meaning but in a more casual tone.
How do I use "is their responsibility" in a sentence?
Use "is their responsibility" to clearly state who is accountable for a particular task or outcome. For example: "Ensuring data security "is their responsibility"."
What's the difference between "is their responsibility" and "is their fault"?
"Is their responsibility" indicates a duty or obligation, while "is their fault" implies blame for a mistake or error. Responsibility concerns tasks; fault concerns errors.
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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested