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 once since
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "and once since" is correct and usable in written English.
It can be used to indicate that something has occurred one time in the past after a specific event or point in time. Example: "I have visited that museum twice, and once since it was renovated."
✓ Grammatically correct
News & Media
Alternative expressions(20)
and had since been
since once
and once as a
and since we will
and we have since
and had once been
and once it is
once since
and has since been
and has been since
once since that
and so since
for once and all
and has been ever since
once and once only
and it has been since then
and once acquired
and soon since
and has since gathered
and once initiated
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
2 human-written examples
According to the police, Mr. Pagan had been arrested nine times prior to last Thursday and once since then, for offenses including criminal mischief, creating graffiti, intent to damage property, telephone harassment and criminal contempt.
News & Media
United have won twice in the league all season and once since Mixu Paatelainen replaced Jackie McNamara as manager.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
58 human-written examples
But he pulled his hamstring in a June workout and has competed only once since, winning a race in Indianapolis two weeks ago in a disappointing 45.93.
News & Media
This prejudice was based on the powdered version we were served at school; brick red, strangely tangy, and studded with suety strands of pasta, yet which, despite these obvious handicaps, often proved the least of a veritable feast of evils – I must have eaten it at least twice a week between the age of eight and 13, and not once since.
News & Media
China launched its easing cycle last November (it has cut interest rates twice and RRR once since then), and Mr Li has pledged to do more to support growth if needed.
News & Media
And once again, since 2011, the U-6 rate has steadily declined.
News & Media
He did the same in the 1990's and once more since 2000.
News & Media
Evancho has said she and her family were subjected to hateful comments online when her sister came out as transgender, and once again since she announced her inauguration performance.
News & Media
The company and its subsidiaries have changed their names several times and ownership once since 2007, owing, in part, to their efforts to shake bad publicity.
News & Media
The team has won silver twice and bronze once since volleyball joined the Olympics in 1964.
News & Media
We shook hands, and never once since has a harsh word passed between us in public or in private.
News & Media
Expert writing Tips
Best practice
When using "and once since", ensure that the context clearly establishes the initial event or time frame to which the 'since' refers. This makes the temporal relationship unambiguous for the reader.
Common error
Avoid using "and once since" when the initial event or time frame is unclear. This can lead to confusion about which period the 'since' is referencing, undermining the sentence's clarity. Always make the initial event explicit.
Source & Trust
94%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "and once since" functions as a conjunctive phrase that introduces additional information regarding the frequency of an event after a specific point in time. As Ludwig AI states, the phrase is correct and usable in written English. It serves to specify that something has occurred a single time following a particular event or date.
Frequent in
News & Media
60%
Formal & Business
20%
Science
20%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "and once since" is a grammatically sound and frequently employed expression used to denote that an event has transpired a single time following a specific point in time. As Ludwig AI confirms, it's a correct and usable phrase. The phrase is commonly found in news and media contexts, serving to provide clarity regarding the frequency of occurrences after an event. While the phrase itself is neutral in tone, it is important to ensure that the temporal reference is clear to avoid any ambiguity. Alternatives such as "and one time since" or "and only once since" can be used to vary the phrasing while maintaining the same meaning.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
and one time since
Replaces "once" with "one time" for a slightly more explicit phrasing.
and a single time since
Uses "a single time" instead of "once" to emphasize the singularity of the event.
and only once thereafter
Emphasizes that the occurrence was singular and followed after a certain point.
and just once since then
Adds "just" and "then" for emphasis and clarity.
and it happened only once since
Rephrases the sentence to make it more descriptive.
and a solitary time since
Substitutes "once" for "a solitary time" for a formal tone.
and on only one occasion since
Uses "on only one occasion" to sound more formal.
and singularly since
Uses a more concise adverb to convey the concept of singularity.
and uniquely since
Highlights the uniqueness and singularity of the event.
and but a single time after that
More archaic phrasing, using "but" and "after that" for time relation.
FAQs
How can I use "and once since" in a sentence?
Use "and once since" to indicate that something has happened one time after a specific event or point in time. For example, "I visited that city twice, "and once since" the new airport opened".
What is a more formal alternative to "and once since"?
A more formal alternative is "and on only one occasion since". For example, "He had only visited the museum once before, "and on only one occasion since" then".
Is it correct to say "and only once since" instead of "and once since"?
Yes, "and only once since" is a correct and often used alternative that emphasizes the singularity of the event. Example: "She'd met him several times before, "and only once since then"".
What does "and once since" imply about the frequency of an event?
"And once since" implies that an event happened a single time in the period following a specific, previously mentioned event. It emphasizes the infrequency of the occurrence in that time frame.
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
94%
Authority and reliability
4.5/5
Expert rating
Real-world application tested