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
thickened
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "thickened" is correct and usable in written English.
It can be used when describing a substance that has become denser or more viscous, often in cooking or scientific contexts. Example: "The sauce thickened as it simmered on the stove, creating a rich and creamy texture."
✓ Grammatically correct
News & Media
Encyclopedias
Science
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
Simmer for 15 minutes, until most of the kidney beans have broken down and thickened the soup, and the spinners are cooked through.
News & Media
Stir in the pimentón, tomatoes and wine and simmer for 5 minutes or until they have reduced and thickened into a sauce.
News & Media
Add the coconut milk and palm sugar and simmer for a couple of minutes, then add the peanuts and simmer until slightly thickened.
News & Media
Simmer until the juice has thickened, then allow to cool. 2 Preheat the oven to 200C/400F/gas mark 6. Roll out the leftover pastry scraps, and cut out discs of about 8-10cm in diameter.
News & Media
And the plot only thickened when I went in search of my favourite Jilly, Polo, where a female hand groping a male crotch seems to have been replaced in newer editions by some dirty knees.
News & Media
Scoop the mixture into a saucepan with the other ingredients and bring slowly to the boil, stirring to dissolve the sugar. 2 Cook for about an hour, stirring more frequently at the later stages, until the chilli jam has thickened and is a good colour.
News & Media
With Umno facing defeat for the first time since the British left, and with tens of millions of dollars in public contracts and patronage at stake, the plot has thickened in recent days in a sensational manner.
News & Media
The carcass is scrunched in the gleaming screw-press, and the blood-rich juices mixed with wine and cognac, thickened with the bird's liver and poured over thinly sliced breast (the legs come back grilled as the next course).
News & Media
Finally, on July 1st, the haze appeared at Baghdad and in the Altai mountains, according to a geologist, Ivan Michaelovich Renovantz, who reported unseasonable frosts in Central Asia.By then, back in Europe, the cloud had thickened.
News & Media
Though hundreds of smaller banks face extinction, big banks have thickened their buffers against loss by raising common equity.
News & Media
Even so, as the unkempt forests have thickened, wildfires that do occur have grown alarmingly in intensity, burning hotter, faster and more destructively.
News & Media
Expert writing Tips
Best practice
When describing a culinary process, use "thickened" to indicate that a sauce, soup, or other liquid has increased in viscosity due to cooking or the addition of a thickening agent.
Common error
Ensure that the tense of "thickened" is appropriate for the context. Use the past tense when describing a completed action and the present participle (thickening) when describing an ongoing process.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The primary grammatical function of "thickened" is as the past participle of the verb "thicken". It is commonly used to describe a state or condition resulting from the process of becoming thicker, as seen in Ludwig's examples where soup, sauce or plots "thickened".
Frequent in
News & Media
31%
Encyclopedias
31%
Science
14%
Less common in
Formal & Business
0%
Reference
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "thickened" functions as the past participle of "thicken", primarily serving a descriptive purpose across various contexts. Ludwig's analysis shows that it's grammatically correct and frequently used in news, encyclopedias, and scientific publications. Although versatile, writers should be mindful of tense consistency and explore synonyms like "became dense" or "grew viscous" for nuanced expression.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
became dense
Focuses on the resultant density rather than the process.
grew viscous
Highlights the increase in viscosity.
became concentrated
Implies a reduction in volume and an increase in strength or density.
inspissated
A more formal and technical term for thickened.
solidified
Suggests a complete change of state to solid.
reduced
Implies that liquid has evaporated, leading to thickening.
congealed
Often used for fats or blood becoming solid.
set
Commonly used in cooking when a liquid becomes firm.
gelled
Describes the formation of a gel-like consistency.
clotted
Usually refers to blood or cream forming lumps.
FAQs
How is "thickened" used in a sentence?
What are some synonyms for "thickened"?
Alternatives to "thickened" include "became dense", "grew viscous", "became concentrated", or "solidified", depending on the specific context.
Is it correct to say "the sauce has thickened" or "the sauce thickened"?
Both are correct depending on the intended meaning. "The sauce has thickened" implies a present perfect action (it thickened at some point in the past and remains thickened now). "The sauce thickened" is simple past, indicating it thickened at a specific time in the past.
What is the difference between "thickened" and "thickening"?
"Thickened" is the past tense and past participle of "thicken", indicating a completed action. "Thickening" is the present participle, indicating an ongoing action or process. For instance, "The gravy has "thickened"" versus "The gravy is "thickening" as it simmers".
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
4.5/5
Expert rating
Real-world application tested