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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
at the core
Grammar usage guide and real-world examplesUSAGE SUMMARY
"at the core" is a perfectly acceptable part of a sentence in written English.
You can use it to refer to the most fundamental part of something. For example: "At the core of this argument is the need for change."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
at the root of
at the lowest level
at the main
at the foundational level
at the basic
at the heart of
at the base of
fundamentally
in essence
at the very core
in its simplest form
at the fundamental
at the heart
at their main
at the most fundamental level
at its most basic
at the essence
the crux of the matter
at the center of
at the centrepiece
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
What's at the core of it?
News & Media
"It's not rotten at the core.
News & Media
PEEKSKILL "Art at The Core," group show.
News & Media
"The lie at the core.
News & Media
The radical absurdity at the core.
News & Media
Digging is at the core of journalism.
News & Media
But only when applied at the core.
News & Media
At the core, it's about friendship.
News & Media
Hollow at the core, they will fall.
News & Media
"That is at the core of Worldreader".
News & Media
Kindness is at the core of it.
News & Media
Expert writing Tips
Best practice
When using "at the core", ensure that the surrounding sentences provide sufficient context for the reader to understand what that core refers to. Avoid vague or ambiguous references.
Common error
Avoid using "at the core" to oversimplify complex topics. While it's useful for highlighting key elements, ensure your explanation still acknowledges the nuances and complexities involved.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
"At the core" functions as a prepositional phrase, typically modifying a noun or clause. It serves to pinpoint the most essential aspect or foundational element of something. Ludwig AI confirms the widespread usage of this phrase, as evidenced by the numerous examples provided.
Frequent in
News & Media
55%
Science
20%
Academia
10%
Less common in
Wiki
5%
Formal & Business
5%
Reference
5%
Ludwig's WRAP-UP
The phrase "at the core" is a widely used prepositional phrase that serves to emphasize the most fundamental aspect of something. Ludwig AI and the numerous examples provided confirm its grammatical correctness and versatility across various contexts, including news, science, and academia. When using "at the core", ensure clarity and avoid oversimplification. Alternatives like "at the heart of" and "in essence" offer similar emphasis. This phrase helps to focus attention on the most crucial element in any discussion.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
at the heart of
This alternative uses "heart" instead of "core", implying the central and most important part.
in essence
This phrase highlights the fundamental nature of something, stripping away non-essential details.
fundamentally
This adverb focuses on the basic and foundational aspect of the subject.
at the base of
This alternative uses "base" instead of "core", suggesting the underlying foundation.
at the root of
This phrase implies the origin or cause of something, similar to the core concept.
in its simplest form
This highlights the essential elements when something is reduced to its most basic state.
at the center of
Using "center" emphasizes the central or focal point, much like the core.
the crux of the matter
This emphasizes the decisive point on which everything depends.
boiled down to
This implies reducing something to its most essential elements.
the key element is
This alternative singles out the most important component.
FAQs
How can I use "at the core" in a sentence?
"At the core" is used to identify the most fundamental or essential element of something. For example, "At the core of the problem is a lack of communication."
What phrases are similar to "at the core"?
Alternatives include "at the heart of", "in essence", or "fundamentally". The best choice depends on the specific context.
Is it better to say "at the core" or "in the core"?
"At the core" is the correct and more common phrase. "In the core" is grammatically incorrect and rarely used in standard English.
What does it mean when something is described as being "rotten at the core"?
When something is "rotten at the core", it means its fundamental principles or values are corrupt or flawed. This suggests that the problem is deep-seated and difficult to fix.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested