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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
justify why
Grammar usage guide and real-world examplesUSAGE SUMMARY
"justify why" is a correct phrase to use in written English.
You can use it when you want to explain or demonstrate the reasons behind an opinion or belief. For example: "Justify why you think this policy should be implemented."
✓ Grammatically correct
News & Media
Science
Academia
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
"You have to justify why you do things.
News & Media
The features of the software are elaborated, which justify why they were preferred over other software.
No woman should have to justify why she wants children later in life.
News & Media
IHMS has simply tried to justify why its performance shouldn't be measured for the month".
News & Media
Each quango needed to justify why it had to remain at arm's length from government.
News & Media
"Every 9 months, every 18 months, you have to justify why the money is still needed.
News & Media
"You're attempting to justify why you're tracking your users, but you're still tracking them".
News & Media
"It's just hard to justify why anyone would be against disclosure".
News & Media
When proposing new rates for 2016, insurers have to justify why they are seeking price increases.
News & Media
All the money was shared and you had to justify why you needed it.
News & Media
Looters found it harder to justify why they broke into small, independent retailers.
News & Media
Expert writing Tips
Best practice
When using "justify why", ensure that the reasons you provide are logical, well-supported, and directly relevant to the claim or action being justified.
Common error
Avoid using "justify why" when a simpler form like "justify" or "explain why" suffices. The inclusion of "why" after "justify" can sometimes be redundant, especially if the context already implies a reason.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "justify why" functions as a verb phrase that introduces an explanation or rationale. It serves to explicitly request or provide reasons for a particular action, decision, or belief. Ludwig provides numerous examples that illustrate its use across various contexts.
Frequent in
News & Media
55%
Science
30%
Academia
15%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "justify why" is a grammatically correct and very common expression used to request or provide reasons for a decision, action, or belief. While technically redundant, as "justify" inherently implies providing reasons, the inclusion of "why" is widespread across diverse contexts, including News & Media, Science, and Academia. Ludwig confirms that it's a correct and acceptable phrase. When employing "justify why", ensure that your reasons are logical and well-supported and that you are aware that "explain why" can often be a preferred alternative.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
explain why
Focuses on making something clear and understandable.
rationalize why
Suggests an attempt to find logical reasons, sometimes to excuse or defend something.
give reasons for
Emphasizes the act of providing a justification or explanation.
provide justification for
Highlights the need for a formal or official explanation.
defend the reason for
Implies advocating for a specific cause or action.
account for
Used when providing a comprehensive explanation.
show grounds for
Indicates the act of demonstrating a valid basis or foundation.
elucidate the reasons behind
Focuses on clarifying the underlying motives or causes.
validate the purpose of
Emphasizes confirming the legitimacy or correctness of a goal.
substantiate the rationale for
Highlights the need for empirical evidence to support a reasoning.
FAQs
How can I use "justify why" in a sentence?
Use "justify why" to explain the reasons behind a decision or action, as in "He had to "justify why" he made that choice to the board."
What are some alternatives to "justify why"?
Depending on the context, you could use alternatives such as "explain why", "rationalize why", or "give reasons for".
Is it redundant to say "justify why"?
While technically redundant because "justify" already implies providing reasons, ""justify why"" is a commonly used phrase in both formal and informal contexts and Ludwig confirms that it is correct.
What's the difference between "justify" and ""justify why""?
The word "justify" means to show or prove to be right or reasonable. "Justify why" includes the explicit question of reasons to provide a more conversational feel but may be seen as slightly redundant.
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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