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
coincided by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "coincided by" is not correct and does not convey a clear meaning in written English.
It is not typically used in standard English, and the correct preposition should be "with" instead of "by." Example: "The event coincided with the festival, attracting more visitors."
⚠ May contain grammatical issues
News & Media
Science
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
4 human-written examples
This was was just one of dozens of similar contests -- often with much higher stakes -- that take place in Albany during a four-year term, which are coincided by a flurry of donations to the incumbent governor.
News & Media
He was at the opening-night party for the Clinton Global Initiative, which coincided (by design) with the meeting of the United Nations General Assembly, bringing every politico, pundit, despot, philanthropist, First Lady, and diplomat of note to town for a whirlwind few days of posturing, glad-handing, do-gooding, and future-plotting.
News & Media
Reactivation and cross-linking experiments clearly demonstrated that the loss of activity at lower denaturant concentrations was not coincided by dimer dissociation or structural unfolding.
The growth of the economy is coincided by rapid expansion in corruption, collusion, and nepotism (Korupsi, Kolusi, dan Nepotisme / KKN).
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
That a meteor impact would coincide by chance with massive volcanism at the times of two mass extinctions strikes scientists as very unlikely.
News & Media
On the basis of their analysis, the scientists said, these three "references 'cohere,' in the sense that the astronomical phenomena pinpoint the date of 16 April 1178 B.C.," adding, "The odds that purely fictional references to these phenomena (so hard to satisfy simultaneously) would coincide by accident with the only eclipse of the century are minute".
News & Media
In fact, the set of fixed point coincides by (3) and (5).
As already pointed out in the foregoing section, these classes will be shown to coincide by Theorem 1 below, whose proof is just based on Lemma 1.
Science
The above considerations show that the fate of metaphysics as a branch of philosophy in the Arabic speaking world and in Muslim societies coincides, by and large, with the reception, transmission and transformation of Aristotle's Metaphysics.
Science
Consider this problem that coincides by heat conduction model of the human head y"(x)+frac{2}{x}y'(x)=-e^{-y}, we consider the solution of this problem with conditions as follows: y'(0)=0, qquad y(1)+y'(1)=0.
Central to the perdurantist account of temporary coincidence is the claim that, while it is bizarre to think that two distinct objects could entirely coincide, there is nothing bizarre about two objects partially coinciding by sharing a part, and nothing bizarre about an object partially coinciding with one of its own parts.
Science
Expert writing Tips
Best practice
When aiming to express that two events occurred at the same time, use "coincided with" instead of "coincided by". For example, "The conference coincided with the music festival."
Common error
Avoid using "by" after "coincided"; the correct preposition is "with". Using "coincided by" can lead to grammatical errors and confusion.
Source & Trust
82%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "coincided by" functions as a verb phrase with a preposition, attempting to describe the temporal relationship between two events. However, it's considered grammatically incorrect, as noted by Ludwig AI. The correct form is "coincided with."
Frequent in
News & Media
30%
Science
30%
Wiki
10%
Less common in
Formal & Business
0%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "coincided by" is generally considered grammatically incorrect. Ludwig AI confirms that the correct preposition to use with "coincided" is "with". Although examples can be found across various source types such as News & Media, Science, and Wiki, these instances are outweighed by the grammatical error. It is therefore advisable to use "coincided with" or alternative expressions like "occurred simultaneously with" or "happened at the same time as" to ensure clarity and correctness in writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
occurred simultaneously with
Emphasizes the simultaneous occurrence of events, replacing the passive voice.
happened at the same time as
Replaces "coincided" with simpler vocabulary, focusing on temporal concurrence.
aligned with
Focuses on the alignment or agreement of events or ideas rather than strict timing.
corresponded with
Highlights a relationship or similarity between events, not just timing.
was concurrent with
Uses a more formal term for simultaneous occurrence.
took place alongside
Emphasizes events happening side by side.
synchronized with
Implies a coordinated timing or alignment.
matched with
Focuses on the correspondence or matching of events rather than timing.
was simultaneous to
Highlights the exact simultaneity of two occurrences.
existed concurrently with
Highlights the simultaneous existence of two or more things.
FAQs
What is the correct preposition to use with "coincided"?
The correct preposition to use with "coincided" is "with", not "by". For example, say "The meeting coincided with the holiday" instead of "The meeting coincided by the holiday".
What does it mean when two events "coincide"?
When two events "coincide", it means they happen at or around the same time. You could use phrases like "occurred simultaneously with" or "happened at the same time as" as alternatives.
Is "coincided by" grammatically correct?
No, "coincided by" is generally considered grammatically incorrect. The correct phrasing is "coincided with". Using "aligned with" may provide a similar meaning.
What are some alternatives to "coincided with"?
Some alternatives to "coincided with" include "aligned with", "corresponded with", "happened at the same time as", or "occurred simultaneously with", depending on the context.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
1.8/5
Expert rating
Real-world application tested