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
approximately two thirds
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "approximately two thirds" is correct and usable in written English.
It can be used when you want to express an estimate of a quantity that is about two-thirds of a whole. Example: "Approximately two thirds of the participants agreed with the proposed changes to the policy."
✓ Grammatically correct
Science
News & Media
Alternative expressions(3)
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
16 human-written examples
By 2050, the House plan would cut federal health care spending by approximately two thirds.
News & Media
Approximately two thirds (67%) of the responders were male.
By deploying the prescribed method, uncertainty in model predictions is reduced by approximately two thirds.
Science
Approximately two thirds of all human solid tumors derive from epithelial tissues.
Approximately two thirds of the patients had complains of an abdominal pain or discomfort.
Science
The NFSA aims to provide subsidized food grains to approximately two thirds of India's population.
Human-verified similar examples from authoritative sources
Similar Expressions
43 human-written examples
Approximately two-thirds are arrested again within three years.
News & Media
With its rapid demographic and economic growth, urbanisation levels are approximately two-thirds that of Europe.
News & Media
(They constitute approximately two-thirds of those being held in state prisons and municipal jails).
News & Media
Approximately two-thirds of divorces — including those that come late in life — are initiated by wives.
News & Media
The population of Istria, approximately two-thirds of which is Croatian, engages mostly in agriculture.
Encyclopedias
Expert writing Tips
Best practice
Use "approximately two thirds" when you need to convey an estimated proportion without being overly precise. It's suitable for both formal and informal contexts.
Common error
Avoid using "approximately two thirds" when you have exact figures. In such cases, provide the precise percentage or fraction.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "approximately two thirds" functions as a prepositional phrase that modifies a noun or pronoun, indicating an estimated quantity. Ludwig AI identifies this phrase as correct and usable in written English. Examples show it describing proportions of populations, resources, or data sets.
Frequent in
Science
69%
News & Media
25%
Wiki
6%
Less common in
Encyclopedias
0%
Formal & Business
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "approximately two thirds" is a versatile and grammatically correct way to express an estimated proportion. Ludwig AI confirms its usability across various contexts, particularly in science and news media. It’s important to use this phrase when precision isn't critical, and to avoid it when exact figures are available. Alternatives like "roughly two thirds" or "about two thirds" can provide similar meanings with slight variations in formality. Understanding these nuances allows for more effective and contextually appropriate communication.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
roughly two thirds
Replaces "approximately" with "roughly", indicating a less precise estimation.
nearly two thirds
Substitutes "approximately" with "nearly", suggesting a close but not exact value.
almost two thirds
Replaces "approximately" with "almost", implying a slightly lesser quantity.
about two thirds
Uses "about" instead of "approximately", offering a more casual estimation.
around sixty-six percent
Uses a percentage to express the proportion, offering a more precise numerical representation.
close to two thirds
Suggests a quantity that is very near to two-thirds, implying a high degree of proximity.
something like two thirds
Indicates an estimation using a more informal and conversational tone.
more or less two thirds
Indicates a quantity that is close to two-thirds, allowing for minor variations.
in the vicinity of two thirds
Employs a more formal and descriptive phrase to convey an approximate quantity.
in the neighborhood of two thirds
Uses a spatial metaphor to express an approximate quantity.
FAQs
How can I use "approximately two thirds" in a sentence?
You can use "approximately two thirds" to indicate an estimated proportion or quantity that is close to two-thirds of a whole. For example, "Approximately two thirds of the students passed the exam".
What's the difference between "approximately two thirds" and "about two thirds"?
While both phrases convey an estimated proportion, "approximately two thirds" is slightly more formal than "about two thirds", which is more conversational.
Is it better to say "approximately two thirds" or "around 66 percent"?
It depends on the context. "Approximately two thirds" is generally preferred when you want to avoid specific numbers, while "around 66 percent" offers a more precise, albeit still estimated, figure.
What are some alternatives to using "approximately two thirds"?
Depending on the desired level of formality and precision, you can use alternatives like "roughly two thirds", "nearly two thirds", or "almost two thirds".
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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested