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 landmark day
Grammar usage guide and real-world examplesUSAGE SUMMARY
"a landmark day" is a correct and usable phrase in written English.
It is usually used to describe a day that is particularly important or notable for some reason. For example: "Today marked the beginning of a new era, making it a landmark day for the company."
✓ Grammatically correct
Alternative expressions(14)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Globally, wind installations grew by 25% in 2014, reaching a landmark 62,000 MW of capacity, according to a separate report by Bloomberg New Energy Finance (BNEF).
News & Media
The high-stakes legal drama riveted the nation for two weeks, culminating in a landmark 6-to-3 Supreme Court decision in favor of The Times and the First Amendment.
News & Media
Even the landmark 2.1m ESPN viewers for the recent European championship match between Italy and Spain is a fraction of the 16.4m audience for an average Monday night game of American football.
News & Media
Google has been hit with a landmark €4.34bn (£3.8bn) fine by the European Union over "serious illegal behaviour" to secure the dominance of its search engine on mobile phones.
News & Media
Patrick Mahomes threw a landmark 50th touchdown as the Kansas City Chiefs confirmed their place as top seeds in the AFC by battering the Oakland Raiders 35-3, while the New England Patriots will join them on a bye after a crunching 38-3 win over the New York Jets.
News & Media
In a landmark 7-1 dearlier this weekhis week, the U.S. Supreme Court voided a nearly 30-year-old murder conviction of a black inmate in Georgia due to prosecutors' efforts to keep black jurors from hearing the case.
News & Media
DENNY LEE "TIMELINE: Lives of a Landmark" 1895 -- William Randolph Hearst acquires the Morning Journal and moves to New York City 1920's -- The building is proposed as part of a new cultural and commercial center near Columbus Circle to be called Heart Plaza.
News & Media
The Court, in a landmark 5 4 decision, written by Justice John Paul Stevens and issued ten years ago this week, agreed with the states.
News & Media
Archives|66 BROADWAY SOLD; LONG A LANDMARK; Central Union Trust Reported Buyer of Manhattan Life Insurance Building.
News & Media
66 BROADWAY SOLD; LONG A LANDMARK; Central Union Trust Reported Buyer of Manhattan Life Insurance Building.
News & Media
IGS 0099 was considered a landmark for NPC treatment 7.
Science
Expert writing Tips
Best practice
Use "a landmark day" to highlight events that mark significant progress or change within a specific context. For example, a company might refer to the launch date of a transformative new product as "a landmark day".
Common error
Avoid using "a landmark day" to describe routine events or minor accomplishments. This diminishes the phrase's impact and reduces its effectiveness when you need to emphasize truly significant occasions.
Source & Trust
60%
Authority and reliability
3.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a landmark day" functions as a noun phrase, typically used as a subject complement or an appositive to describe a specific day. It emphasizes the significance and importance of that particular day in a given context.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
In summary, "a landmark day" is a grammatically correct phrase used to emphasize the significance of a particular day. Although Ludwig has no examples of the phrase in use, and therefore the usage is described as missing, it can be effectively used to highlight important milestones or turning points. When incorporating it into your writing, aim for contexts where the day genuinely marks a significant shift or achievement to maintain the phrase's impact. Remember to consider alternatives like "a momentous occasion" or "a pivotal moment" to provide variety and precision in your expression.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
a momentous occasion
Emphasizes the significance and importance of the event.
a significant milestone
Highlights the achievement of a notable point in a process or journey.
a pivotal moment
Focuses on the turning point or critical juncture aspect.
an important day
Uses simpler language to convey the day's significance.
a memorable day
Highlights the day's unforgettable quality.
a red-letter day
An idiomatic expression indicating a day of special significance or happiness.
a watershed moment
Implies a significant turning point after which things will be different.
a turning point
Focuses on a moment when a significant change occurs.
a signal event
Emphasizes the day as an indicator of future trends or developments.
a day to remember
Directly expresses the idea that the day should be kept in memory.
FAQs
How can I use "a landmark day" in a sentence?
You can use "a landmark day" to describe a day of significant importance or achievement. For example, "The signing of the treaty was "a landmark day" in the history of international relations."
What are some alternatives to "a landmark day"?
Some alternatives include "a momentous occasion", "a significant milestone", or "a pivotal moment" depending on the specific context.
Is it correct to say "the landmark day" instead of "a landmark day"?
While grammatically possible, "the landmark day" implies a specific, previously identified day. "A landmark day" is more general and refers to any day that qualifies as a landmark event.
What distinguishes "a landmark day" from "an important day"?
"A landmark day" suggests a more profound and lasting impact than "an important day". A landmark day signifies a turning point, whereas an important day may simply be of considerable significance.
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
60%
Authority and reliability
3.5/5
Expert rating
Real-world application tested