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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
the first day
Grammar usage guide and real-world examplesUSAGE SUMMARY
"the first day" is a perfectly acceptable phrase in written English.
You can use it when referring to the initial day of something, such as an event or experience. Example: On the first day of our vacation, we decided to explore the local area.
✓ Grammatically correct
News & Media
Wiki
Encyclopedias
Alternative expressions(5)
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
Sunday, the first day of the week.
Encyclopedias
The first day of classes.
News & Media
She overslept the first day.
News & Media
The first day of Disrupt.
News & Media
Ah, the first day of May!
News & Media
[pauses] That was the first day.
News & Media
On the first day of Christmas.
News & Media
On the first day.
News & Media
The first day.
News & Media
Always boring the first day.
News & Media
"The first day I arrived.
News & Media
Expert writing Tips
Best practice
When using "the first day" in a narrative, follow it with details that establish the setting or context. This helps to immediately engage the reader and set the stage for the story.
Common error
Avoid omitting the definite article "the" before "first day" as it provides specificity. Saying "first day" may sound less formal or even grammatically incomplete in many contexts. Always use "the first day" to refer to a particular start date or event.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "the first day" functions primarily as a temporal marker, indicating the start of a period, event, or activity. It provides a specific point of reference in time. Ludwig confirms that the expression is correct.
Frequent in
News & Media
67%
Wiki
18%
Encyclopedias
6%
Less common in
Science
5%
Formal & Business
3%
Reference
1%
Ludwig's WRAP-UP
In summary, "the first day" is a grammatically sound and frequently used phrase. Ludwig AI confirms its correctness and provides numerous examples across various domains. Predominantly used in News & Media and Wiki contexts, it serves as a clear temporal marker indicating the beginning of an event or period. While synonyms like "the opening day" or "day one" exist, "the first day" maintains a versatile and widely accepted usage. Best practice involves ensuring the definite article "the" is included for clarity, setting the stage for effective communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
The opening day
Replaces 'first' with 'opening', emphasizing the start or commencement of an event or period.
The initial day
Substitutes 'first' with 'initial', providing a more formal or technical tone.
Day one
A concise and informal way to refer to the first day of something.
The inaugural day
Uses 'inaugural' to denote the beginning or commencement, often used for formal events.
The starting day
Emphasizes the act of beginning or starting an activity or period.
The very first day
Adds emphasis to the 'first' day, highlighting its importance.
The premiere day
Similar to 'opening day', but often used in the context of film or theater.
The day it began
Shifts the focus to the act of beginning rather than simply the first day.
The dawn of
A more figurative and poetic way to describe the beginning or start of something.
The commencement day
A formal term indicating the beginning, often used in academic contexts.
FAQs
How can I use "the first day" in a sentence?
You can use "the first day" to mark the beginning of an event, such as, "On "the first day" of the conference, we had an opening keynote speech". Alternatively, you can use it as a reference for a personal experience, such as, "I remember feeling nervous on "the first day" of school".
What is the difference between "the first day" and "day one"?
"The first day" is a more formal and descriptive phrase, while "day one" is a more concise and informal way to refer to the beginning of something. Consider your audience and the tone of your writing when choosing between these options. /s/day+one
Are there any synonyms for "the first day" that I can use?
Yes, depending on the context, you can use synonyms like "the opening day", "the initial day", or even "the dawn of" to refer to the beginning of something. Consider if using "the opening day", "the initial day", or "the dawn of" suits the setting.
When is it appropriate to use "the first day" instead of simply "first"?
Use "the first day" when you need to emphasize the specific day that something began. Using "first" alone might not clearly convey that you're referring to the initial day. For example, "The first day" of spring is always refreshing is better than The "first" of spring is always refreshing
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested