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
are highly certain
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are highly certain" is correct and usable in written English.
It can be used when expressing a strong level of confidence or assurance about a particular statement or situation. Example: "The scientists are highly certain that their findings will lead to significant advancements in medical research."
✓ Grammatically correct
Science
News & Media
Alternative expressions(2)
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
1 human-written examples
Mechanistically, if changes in cell-type composition with age are highly certain and tissue-specific, then this would lead to corresponding highly accurate tissue-specific age predictors.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
While it is highly certain that this result is accurate, it is complicated to interpret and the formulation of a prognosis may be difficult.
Science
They are highly concentrated in certain fields of study and in certain campus residences.
News & Media
Furthermore, it is revealed that some biosynthesis-related enzymes are highly expressed in certain bacteria.
Network features are highly predictive of certain types of social media abuse, like astroturf, that attempt to simulate grassroots online conversations [4, 5, 14, 83].
Science
Australia also does with the General Skilled Migration Program for individuals who are not sponsored by a "godfather" firm (or individual) but who are highly qualified in certain jobs for which there are specific Australian needs.
Science
I think the best types of content to monetize are those pieces of [text] content that are highly targetable around certain subject areas, combined with a good brand name.
News & Media
Similarly, genes with constitutive binding sites for other TFs are highly enriched in certain biological processes.
Science
The majority of the conserved genes are highly enriched in certain COG groups (Additional file 2: Table S2).
Science
It is possible that class II pilins are highly conserved in certain lineages because they confer specific properties important for interactions within the host.
Science
Many of them are highly expressed at certain embryonic stages, suggesting that they may play roles in determining cell fate during early development.
Science
Expert writing Tips
Best practice
Use "are highly certain" when you want to convey a strong sense of confidence based on solid evidence or understanding. It's appropriate when expressing a judgment that is unlikely to be wrong.
Common error
Avoid using "are highly certain" when the evidence is weak or speculative. Overstating certainty can undermine your credibility if your claims are later disproven.
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are highly certain" functions as an adjective phrase, modifying a subject to indicate a strong degree of confidence or assurance. Ludwig AI identifies its role in expressing a firm conviction.
Frequent in
Science
50%
News & Media
50%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "are highly certain" is a grammatically correct adjective phrase used to express a strong belief or conviction. Ludwig AI confirms its validity. While relatively infrequent, it is found in both scientific and news contexts. To avoid overstatement, reserve this phrase for situations with strong evidence. Alternatives such as "are extremely sure" or "are completely confident" can provide nuanced variations in meaning. Overall, use the phrase thoughtfully to accurately convey your degree of assurance.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
are extremely sure
Emphasizes a very high level of certainty.
are completely confident
Highlights full confidence, leaving little room for doubt.
are absolutely positive
Conveys unwavering affirmation and conviction.
are entirely convinced
Focuses on the state of being persuaded without reservation.
are beyond any doubt
Indicates a certainty that surpasses any questioning.
are decidedly sure
Highlights a firm and resolute state of certainty.
are firmly convinced
Suggests a strong and unwavering belief.
are quite definite
Implies a clear and precise level of certainty.
are virtually certain
Indicates a near-absolute level of certainty, allowing for minimal possibility of error.
are reasonably sure
Suggests a moderate level of confidence based on available evidence.
FAQs
What does "are highly certain" mean?
The phrase "are highly certain" expresses a strong belief or conviction that something is true, based on available evidence or understanding. It indicates a high degree of confidence in the accuracy or validity of a particular statement or fact.
How can I use "are highly certain" in a sentence?
You can use "are highly certain" to express a strong level of confidence in a statement. For example: "Scientists "are highly certain" about the effects of climate change".
What can I say instead of "are highly certain"?
You can use alternatives like "are extremely sure", "are completely confident", or "are absolutely positive" depending on the context.
When is it appropriate to use "are highly certain"?
It's appropriate to use "are highly certain" when you possess substantial evidence or a deep understanding that supports your statement. Use it when you believe the possibility of being wrong is minimal.
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
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested