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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
an additional one
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "an additional one" is correct and usable in written English.
You can use this phrase when referring to a thing that has already been mentioned or is known to the reader, and you want to refer to one more of that thing. For example, "I already have two cats, but I'm thinking of getting an additional one."
✓ Grammatically correct
News & Media
Science
Academia
Formal & Business
Encyclopedias
Wiki
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
42 human-written examples
Note that this section is offered as an additional one unit course on top of your enrollment in CS 106A.
Academia
Moreover, there are an additional one million women on probation or parole (American Civil Liberties Union 2013).
Science
This was an additional one.
News & Media
Some reports suggested the country was home to an additional one million illegal workers.
News & Media
Players are allotted three per set and an additional one in each tie breaker.
News & Media
The company goal is to get into an additional one million hotel rooms.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
18 human-written examples
They also can include voice mail, with some features requiring an additional one-time charge.
News & Media
Last quarter, the fund lost an additional one-quarter of its value.
News & Media
Current applications discussed in an additional one-hour tutorial each week.
The same taxes rose by an additional one-third or RMB22 billion in 2005.
News & Media
Two-step verification (also called two-factor authentication) requires an additional one-time code along with your typed password.
News & Media
Expert writing Tips
Best practice
Use "an additional one" to clearly indicate you are adding to a previously mentioned quantity or item. This avoids ambiguity and ensures your reader understands you are not starting a new count.
Common error
Avoid using "an additional one" without clear context. Ensure the reader knows what "one" refers to. Without a preceding reference, the phrase becomes vague and confusing.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "an additional one" functions as a determiner phrase, modifying a noun (often implied) to indicate an extra item or unit. Ludwig AI confirms its grammatical correctness and widespread usage, underscoring its role in specifying quantity.
Frequent in
News & Media
34%
Science
32%
Academia
8%
Less common in
Formal & Business
6%
Encyclopedias
4%
Wiki
2%
Ludwig's WRAP-UP
In summary, "an additional one" is a grammatically sound and commonly used phrase across diverse contexts. Ludwig AI confirms its validity and wide applicability. It serves to specify the addition of a single unit to a previously mentioned item. Its frequency is very common, especially in "news & media" and "science". When using the phrase, ensure there is a clear reference for what "one" refers to, to avoid ambiguity. Consider alternatives like "another one" or "one more" for simpler phrasing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
another one
Simple synonym, implying there's already one and referring to a second instance.
a further one
Implies a continuation or progression beyond the current instance.
one more
Common and straightforward way of indicating an extra item.
a supplementary one
Highlights that it is added to enhance or complete something else.
an extra one
Suggests something beyond what is strictly necessary.
a bonus one
Conveys the sense of an unexpected or welcome addition.
a secondary one
Focuses on its role as less important than a primary item.
a follow-up one
Suggests that it is subsequent to a previous action or item.
a redundant one
Highlights its unnecessary or repetitive nature.
a duplicate one
Indicates an exact copy or replica.
FAQs
How to use "an additional one" in a sentence?
Use "an additional one" when you want to specify that you are adding one more item to something already mentioned. For example, "I have two tickets, and I need "an additional one" for my friend".
What can I say instead of "an additional one"?
You can use alternatives like "another one", "one more", or "a further one" depending on the context.
Is it correct to say "a additional one" instead of "an additional one"?
No, it is grammatically incorrect. The correct article to use before "additional" is "an" because "additional" starts with a vowel sound.
When is it appropriate to use "an additional one" instead of just "another"?
Use "an additional one" when you want to emphasize that you are specifically adding a single unit to a previously mentioned number or item, whereas "another" is a more general term.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested