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
as a must
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as a must" is correct and usable in written English.
It can be used to indicate that something is necessary or required. Example: "Completing the training program is a must for all new employees, as a must to ensure they are fully prepared for their roles."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
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
24 human-written examples
Gore aides, however, see the distance as a must.
News & Media
Rapids fans see this as a must win if we're going to qualify for the playoffs.
News & Media
Last week Google HQ emerged as a "must visit" destination for US Presidential hopefuls.
News & Media
Hailed as a "must read," it quickly became a fundamental source for all Mesoamericanists.
Academia
Modularity is a key feature at design, programming, proving, testing, and maintenance time, as well as a must for reusability.
"I've marked it down as a must get," he wrote in a public Reddit chat in December 2016.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
36 human-written examples
"He qualifies as a must-include".
News & Media
BUT Israel endures as a must-stop.
News & Media
Few would have marked that match as a must-watch.
News & Media
Officially China still sees nuclear power as a must-have.
News & Media
It was being billed as a must-win game for both sides with their differing ambitions.
News & Media
Expert writing Tips
Best practice
Use "as a must" to clearly communicate that something is required or indispensable. Ensure the context supports this strong emphasis on necessity.
Common error
Avoid using "as a must" in casual conversation or informal writing where simpler alternatives like "necessary" or "essential" might be more appropriate. Overuse can make your writing sound overly formal or stilted.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as a must" functions as a modifier, indicating that something is considered essential, required, or indispensable. Ludwig examples show it emphasizing the necessity of actions, items, or perspectives.
Frequent in
News & Media
40%
Science
30%
Academia
10%
Less common in
Wiki
10%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "as a must" is a grammatically sound expression used to emphasize that something is required or essential. While not extremely common, it appears in diverse contexts, mainly in News & Media and Scientific sources. Ludwig AI indicates that the phrase is correct. When writing, consider the context and choose a more appropriate alternative if a formal tone is not needed. Common alternatives include "as a necessity" or "as essential". Remember, using "as a must" appropriately ensures clear and impactful communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
as a necessity
Replaces 'must' with 'necessity', emphasizing the indispensable nature of something.
as an imperative
Uses 'imperative' to highlight the compulsory or crucial aspect.
as essential
Uses 'essential' to emphasize the fundamental importance.
being indispensable
Focuses on the irreplaceable quality of something.
being critical
Highlights the crucial role or importance.
deemed necessary
Emphasizes the judgment or decision that something is required.
considered obligatory
Formal alternative suggesting something is required by rule or custom.
regarded as vital
Uses 'vital' to stress the importance for success or survival.
viewed as compulsory
Highlights the mandatory nature of something.
understood as requisite
A more formal and less common way to say something is required.
FAQs
How can I use "as a must" in a sentence?
You can use "as a must" to indicate that something is essential or required. For example, "Completing the training program is "as a must" for all new employees."
What can I say instead of "as a must"?
You can use alternatives like "as a necessity", "as an imperative", or "as essential" depending on the context.
When is it appropriate to use the phrase "as a must"?
It's appropriate when you want to strongly emphasize that something is required, essential, or indispensable. It can be used in formal writing or professional settings.
Is "as a must" formal or informal?
The phrase "as a must" leans towards the formal side, but it can be used in various contexts. It is more appropriate to use it on professional rather than on informal contexts.
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
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested