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
let us call this
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "let us call this" is correct and usable in written English.
It can be used when introducing a term or concept that you want to define or discuss further in your writing. Example: "For the purpose of this discussion, let us call this phenomenon 'X' to simplify our analysis."
✓ Grammatically correct
Science
News & Media
Formal & Business
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
Since it invokes voices in the head, let us call this, uncharitably, the crazy explanation.
News & Media
Let us call this the Aas-if@ economy, short for AAutarky with the Same Income and Factor prices@.
Yet when the Rev. Daniel J. Berrigan, the Jesuit antiwar activist, accused Israel of "militarism" and "domestic repressions" of Palestinians, saying they echoed those of the Nazis, Rabbi Hertzberg condemned him for "simplistic moralizing". "Let us call this by its right name: old-fashioned theological anti-Semitism," he wrote in an article.
News & Media
Let us call this the black Range Rover effect, on the basis that the world can be usefully divided into two (unevenly sized) tribes, comprising (1) people who drive black Range Rovers and (2) people with whom one might care to spend any time.
News & Media
Let us call this the Epicurean presumption.
Science
Let us call this modest compatibilism.
Science
Let us call this capacity as.
Let us call this property of infinity reflexivity under addition.
Science
Let us call this Boole's Rule of 0 and 1.
Science
Let us call this the broadest multiverse view.
Science
Let us call this a Gentzen-style relativized negation.
Science
Expert writing Tips
Best practice
When introducing a new term, use "let us call this" to clearly signal to your audience that you are defining a specific concept for the purpose of your discussion. This helps avoid ambiguity and ensures everyone is on the same page.
Common error
Avoid using "let us call this" in very informal settings such as casual conversations or informal emails. It can sound overly formal or pretentious. Instead, opt for simpler alternatives like "let's call this" or "we'll call this".
Source & Trust
79%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "let us call this" functions as an introductory expression used to formally introduce and define a term or concept. As Ludwig AI shows, the phrase serves to set the stage for a more detailed explanation or analysis.
Frequent in
Science
38%
News & Media
20%
Encyclopedias
15%
Less common in
Formal & Business
10%
Wiki
4%
Social Media
0%
Ludwig's WRAP-UP
In summary, "let us call this" is a grammatically sound and frequently used phrase across diverse contexts, as verified by Ludwig AI. It serves to introduce and define terms for clarity in communication. Primarily found in scientific and formal domains, it ensures both the speaker and audience share a common understanding. While generally formal, it can be adapted for less formal settings by using contractions like "let's". Remembering these nuances will help you use the phrase effectively in your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
let's designate this as
Changes the tone to be slightly more casual by using the contraction "let's" and substitutes "call" with "designate", adding a touch of formality.
we shall term this
Replaces "let us" with "we shall", which is slightly more formal, and substitutes "call" with "term", maintaining a similar meaning.
we will refer to this as
Uses "we will" instead of "let us", and "refer to" instead of "call", making it a bit more descriptive and slightly less direct.
for our purposes, we'll name this
Adds context by specifying "for our purposes" and uses the contraction "we'll" with "name", making it more conversational while introducing the term.
we can identify this as
Shifts the focus to identification rather than naming, suggesting a more analytical approach.
let's label this
Employs "label" instead of "call", providing a slightly different nuance that emphasizes categorization.
we're going to define this as
Uses a more descriptive and explanatory tone, indicating a formal definition will follow.
henceforth, we'll know this as
Introduces a time element with "henceforth", indicating that the term will be used from this point forward.
hereafter, let's consider this
Similar to the previous alternative, uses "hereafter" to indicate future reference and substitutes "call" with "consider", softening the introduction.
suppose we denote this
Presents the naming as a supposition or proposal, slightly less assertive than the original.
FAQs
How can I use "let us call this" in a sentence?
Use "let us call this" to introduce a new term or concept that you will be using and defining. For example, "For the purpose of this study, let us call this phenomenon 'cognitive dissonance'". It is most suitable in formal writing or speech.
What are some alternatives to "let us call this"?
You can use alternatives like "let's designate this as", "we shall term this", or "we will refer to this as", depending on the formality of the context.
Is "let us call this" appropriate for informal conversation?
While grammatically correct, "let us call this" may sound overly formal in informal settings. Consider using "let's call this" or simpler phrasing for everyday conversation.
What is the difference between "let us call this" and "we should call this"?
"Let us call this" is an invitation to the audience to jointly adopt a term, while "we should call this" is a suggestion or recommendation. The former is more inclusive and defining, while the latter is more advisory.
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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
79%
Authority and reliability
4.6/5
Expert rating
Real-world application tested