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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
extend upon
Grammar usage guide and real-world examplesUSAGE SUMMARY
"extend upon" is a correct and usable phrase in written English.
It is used to describe when one elaborates on something they have said or written before. Example: In my previous essay, I discussed the effects of climate change on the polar bears. I would like to extend upon that in this essay by exploring how global warming is impacting other Arctic species.
✓ Grammatically correct
Science
News & Media
Academia
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
48 human-written examples
It could extend upon this whole Rorschach thing.
News & Media
>> point here within functor to extend upon in this direction.
Academia
Conspiracy theories extend upon that and tap into these assumptions and fears we have about the world.
News & Media
A TWSME extension spring that could extend upon heating and contract upon cooling was obtained by constrained annealing and thermomechanical training.
Utilising the behavioural framework, we extend upon the standard hierarchical control refinement for ordinary systems and allow for algebraic couplings inherent to descriptor systems.
Science
In this work, we extend upon the concept of the Multi-output Gaussian Process (MGP) to effectively deal with all of these difficulties simultaneously.
Human-verified similar examples from authoritative sources
Similar Expressions
12 human-written examples
We extended upon the Kill A Watt by developing a computer interface to provide real time graphs and remote switching.
Academia
A section of wing from missing Malaysia Airlines flight MH370 shows evidence it was extended upon landing, suggesting a rogue pilot brought it down, an air crash expert says.
News & Media
The work presented here extends upon the work of previous researchers to include non-linearly coupled multi-modal response.
Extending upon this finding, we found reduced IRF8 expression in circulating pre-DCs also correlates with reduced overall and recurrence-free survival in pancreatic cancer patients.
Science & Research
He said he was "optimistic towards the visit and noted that the three-day stay of the inspectors could be extended upon their request," the news agency said.
News & Media
Expert writing Tips
Best practice
Use "extend upon" when you want to indicate that you are adding new information or perspectives to an existing topic or idea. It implies a continuation and expansion of previous work or thoughts.
Common error
Avoid using "extend upon" when you are merely restating or summarizing previous information. The phrase should be reserved for instances where you are genuinely adding new insights, analysis, or developments.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "extend upon" functions as a verb phrase + preposition indicating an action of further developing, elaborating, or building upon an existing idea, concept, or piece of work. It's frequently used to show that the speaker or writer is adding new information or perspectives to a previously mentioned topic, as demonstrated by the many examples in Ludwig.
Frequent in
Science
58%
News & Media
22%
Academia
15%
Less common in
Wiki
2%
Formal & Business
1%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "extend upon" is a common and grammatically correct expression used to indicate the act of expanding or elaborating on a previously mentioned topic or idea. As Ludwig AI indicates, it signals the intent to provide more detail, offer new insights, or further develop a subject. While its register is generally neutral, it is more frequently found in scientific, academic, and news contexts. Alternative phrases include "elaborate on", "expand on", and "build upon". When using "extend upon", ensure you are adding genuinely new information, not just restating what has already been said. The high frequency of this phrase across various authoritative sources reinforces its reliability and versatility in both formal and informal writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
elaborate on
Focuses more on providing additional details and clarification.
expand on
Emphasizes broadening the scope or range of a topic.
build upon
Suggests using an existing foundation to create something more complex.
amplify
Implies increasing the intensity or impact of something.
develop further
Highlights the process of growth and refinement.
augment
Focuses on adding something to enhance or improve.
supplement
Indicates providing something extra to complete or enhance.
continue from
Implies a sequential progression from a previous point.
take further
Suggests advancing or progressing an idea or action.
go into more detail
Focuses on providing a more thorough explanation.
FAQs
How can I use "extend upon" in a sentence?
Use "extend upon" when you want to elaborate or add more information to a previously mentioned topic. For example, "I will "extend upon" the research in the next chapter".
What is an alternative to "extend upon"?
Alternatives to "extend upon" include "elaborate on", "expand on", or "build upon". The best choice depends on the specific context.
When is it appropriate to use "extend upon" instead of "continue"?
"Extend upon" implies adding to something, while "continue" simply means to keep going. Use "extend upon" when you're not just continuing but also enhancing or developing the original idea. Use "continue" if you want to keep the exact same idea going without enhancements.
How does "extend upon" differ from "elaborate"?
While both phrases mean to give more detail, "extend upon" suggests a broader scope of addition, perhaps including new related ideas, while "elaborate" focuses on providing more detail to the existing idea. Think of "extend upon" as adding new branches to a tree and "elaborate" as decorating the existing branches.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested