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
an extra
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "an extra" is correct and is commonly used in written English.
You can use it to describe added or additional items, such as an extra scoop of ice cream or an extra set of keys. For example, "I'm going to need an extra blanket for this trip."
✓ Grammatically correct
News & Media
Wiki
Science
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
"He was an extra".
News & Media
At an extra ad.
News & Media
needs an extra engine.
News & Media
It's not an extra".
News & Media
I'm just an extra.
News & Media
"It's an extra wrinkle".
News & Media
We'll need an extra chair".
News & Media
"This is an extra service.
News & Media
He got an extra €5m.
News & Media
So there's an extra energy".
News & Media
"She is an extra ear".
News & Media
Expert writing Tips
Best practice
Use "an extra" to clearly indicate an additional or supplementary item or amount. Ensure the context makes it clear what the original quantity or item is.
Common error
Avoid using "extra" when "additional" is more appropriate for formal contexts. "Extra" can sometimes sound informal. For example, instead of saying "We need extra staff", consider "We need additional staff" in a business report.
Source & Trust
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "an extra" functions as a determiner followed by an adjective, modifying a noun. It indicates an additional item or amount, adding to the base quantity. Ludwig AI confirms its common usage.
Frequent in
News & Media
45%
Wiki
30%
Science
10%
Less common in
Formal & Business
5%
Encyclopedias
5%
Social Media
5%
Ludwig's WRAP-UP
In summary, "an extra" is a grammatically sound and widely used phrase to denote something additional or supplementary. Ludwig AI confirms its correctness and commonality. It's versatile, fitting into many contexts from news articles to everyday conversations. While "extra" alone can sometimes be used as an adjective, using "an extra" before singular nouns maintains clarity. Be mindful of context; while generally neutral, "additional" may be preferable in highly formal writing. With a strong presence in news and media, and everyday wiki-based content, this phrase is an important tool in your writing arsenal.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
an additional
Focuses on the concept of adding something more.
an added
Directly signifies something that has been included or combined.
a supplementary
Highlights the idea of providing something extra for support.
a further
Implies an extension or continuation of something.
a spare
Emphasizes the availability of something more if needed.
an auxiliary
Indicates something that provides added help or function.
a bonus
Focuses on the idea of something given or received in addition to what is expected.
a surplus
Highlights having more than what is needed.
an over and above
Emphasizes surpassing what is required or expected.
a redundant
Indicates that something is not strictly necessary, but available.
FAQs
How to use "an extra" in a sentence?
You can use "an extra" to indicate an additional item or amount, such as "I need "an extra blanket"" or "Could I have "an extra piece" of cake?".
What can I say instead of "an extra"?
Alternatives include "an additional", "a supplementary", or "a spare", depending on the context.
Which is correct, "an extra" or "extra"?
"An extra" is used before a singular noun, while "extra" can be used as an adjective or noun. For example, "an extra day" is correct, but you could also say "I have some extra time".
What's the difference between "an extra" and "additional"?
"An extra" often implies something beyond what is strictly necessary or expected, while "additional" simply means added. In many cases, they are interchangeable, but "additional" may be more formal. You can use "an additional cost" or "an extra cost".
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
80%
Authority and reliability
4.5/5
Expert rating
Real-world application tested