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
and thus because
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "and thus because" is not correct and does not work well in written English.
It is redundant as "thus" and "because" convey similar meanings of causation, making the phrase awkward and unclear. Example: "The project was delayed, and thus because of unforeseen circumstances, we had to extend the deadline."
⚠ May contain grammatical issues
Science
News & Media
Encyclopedias
Wiki
Alternative expressions(20)
therefore
as a result
consequently
because
and therefore because
and consequently because
and so because
and for that reason because
and that is why because
and as a result because
and hence because
and thereafter because
and well because
and furthermore because
and better because
and also because
and then because
and eventually because
and indeed because
and subsequently because
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
11 human-written examples
Yesterday's decision is good news for American science and thus, because of the reach of American research and American businesses, good news for the world too.
News & Media
One result of such scholarly research is the realization that the theory and practice of sacred kingship in a history extending over thousands of years—has undergone immense changes and, thus, because of these widespread and extensive differences, all generalizations and categorizations are difficult to maintain.
Encyclopedias
Such an electric field, however, is produced by electrodes situated inside the plasma, and thus, because of their contact with the plasma, electrode erosion cannot be avoided.
Science
No reaction products were detected in the composites, indicating that the MWCNTs in the composites maintained their structural integrity after sintering, and thus, because of their advantageous properties, could reinforce the titanium matrix.
Science
Uber's upper management has refused to address these area anomalies and thus, because they're already ignoring problems within their loyal workforce.
News & Media
Sue argued that on the date of Hill's nomination to the Senate she was still a citizen of the United Kingdom and thus, because of the operation of section 44 of the Australian Constitution, was ineligible to be elected to the Parliament of Australia.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
48 human-written examples
Even if it were a true illusion of ownership, still this would not suffice for Bermudez to show that experiences of ownership are independently describable, and thus exist because, "There is no way of characterizing the content of our experience of our own bodies that can exclude the fact that we experience our bodies as our own" (2015, p. 44).
Science
Heritable (i.e., maternally- or vertically-transmitted) associations between endosymbiotic bacteria and insects are ubiquitous [1], many of which are obligate because the host cannot reproduce without the symbiont, and thus, mutualistic because the association is beneficial to both partners.
Science
Second, it fuels envy and resentment — and thus circulation — because it's about "high society," as he calls it.
News & Media
Ibrahim was arrested after a Muslim relative claimed her marriage to a US citizen was invalid, and thus adulterous, because he is a Christian.
News & Media
It is sometimes said that Chinese philosophy lacks ontology (and thus metaphysics) because philosophers were never concerned with being as such.
Science
Expert writing Tips
Best practice
Avoid using both "thus" and "because" in the same phrase, as they both serve to indicate causation. Choose one or the other for clarity and conciseness.
Common error
Do not combine words or phrases that express the same causal relationship. Using both "thus" and "because" in close proximity creates an awkward and grammatically unsound sentence.
Source & Trust
80%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "and thus because" attempts to function as a causal connector, indicating a cause-and-effect relationship. However, it fails to do so effectively due to redundancy. Ludwig AI flags this as incorrect.
Frequent in
Science
42%
News & Media
33%
Wiki
17%
Less common in
Encyclopedias
8%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
The phrase "and thus because" is a grammatically incorrect and redundant way to express causation. As highlighted by Ludwig AI, the combination of "thus" and "because", both indicating cause and effect, creates an awkward and unclear construction. While the phrase appears in various sources, including science and news media, its flawed structure undermines its effectiveness. To improve your writing, choose either "thus", "therefore", or "because" alone, ensuring clarity and conciseness. Avoiding redundancy will result in stronger, more professional communication. Consider using alternative phrasing as "therefore" or "consequently" to improve your sentences.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
and therefore because
Replaces "thus" with "therefore", offering a slightly more formal tone while maintaining the causal connection and acknowledging the redundancy.
and consequently because
Substitutes "thus" with "consequently", emphasizing a direct result or outcome. Acknowledges the redundancy of using both because and a word such as consequently or thus together.
and so because
Replaces "thus" with the more informal "so", preserving the causal relationship while lowering the formality. Acknowledges the redundancy of using both because and a word such as consequently or thus together.
and for that reason because
Expands on "thus" to provide a more explicit explanation of the cause-and-effect relationship, but still redundant.
and that is why because
Offers a more conversational and direct replacement for "thus", while retaining the same causal link but maintains the redundancy.
and as a result because
Replaces "thus" with a phrase emphasizing the outcome or effect, while still maintains the redundancy.
and accordingly because
Substitutes "thus" with "accordingly", indicating a logical consequence or alignment, but still maintains the redundancy.
and inasmuch as because
A more formal substitute for "thus", indicating the extent or degree to which something is the case but still maintains the redundancy.
and hence because
Replaces "thus" with "hence", providing a slightly more formal tone while maintaining the causal connection while still maintains the redundancy.
and on account of that because
A more verbose alternative to "thus", explicitly stating the reason or basis for something, while still maintaining the redundancy.
FAQs
What makes "and thus because" grammatically incorrect?
The phrase "and thus because" is grammatically incorrect because it's redundant. Both "thus" and "because" indicate causation, so using them together is unnecessary and awkward.
What are some better ways to express the same idea as "and thus because"?
Instead of "and thus because", you can use phrases like "therefore", "consequently", or simply "because". Choose the one that best fits the context of your sentence.
Is "and thus because" ever appropriate in formal writing?
No, "and thus because" is not appropriate in formal writing. It is considered grammatically incorrect and should be avoided in any type of formal communication.
How can I avoid using redundant phrases like "and thus because" in my writing?
Review your writing carefully and look for instances where you're using multiple words or phrases that have the same meaning. Choose the clearest and most concise option, and eliminate the rest.
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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
80%
Authority and reliability
2.8/5
Expert rating
Real-world application tested