about twenty years

USAGE SUMMARY

The phrase "about twenty years" is correct and usable in written English.
It can be used when estimating a duration of time that is approximately twenty years. Example: "The project has been in development for about twenty years, evolving with each new technology."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

54 human-written examples

He was about twenty years young.

The New Yorker

Dore is about twenty years younger.

The New Yorker

About twenty years ago, they transformed it.

The New Yorker

About twenty years ago".

The New Yorker

I first met Alexievich about twenty years ago.

The New Yorker

They married in 1982 and divorced about twenty years ago.

The New Yorker

Human-verified similar examples from authoritative sources

Similar Expressions

6 human-written examples

It took about six years.

The Guardian

And that took about three years.

University of California, Berkeley

About five years ago.

Independent

Bob: About five years.

The New York Times

Woman: About four years.

The New York Times

Expert writing Tips

Best practice

Consider using a more precise measurement (e.g., "nineteen years", "two decades") if the exact duration is known and relevant to the context.

Common error

Avoid using "about twenty years" when you have access to precise data. If the event occurred exactly twenty years ago, state that directly to maintain credibility.

Linguistic Context

Adverbial phrases such as "about twenty years" primarily function as adjuncts, modifying verbs or clauses to provide information about time. Ludwig shows the expression is used to specify duration or period of time, indicating how long something has lasted or existed. For example, "Medical robots have been used for about twenty years."

Expression frequency: Very common

Frequent in

News & Media

55%

Science

25%

Wiki

5%

Less common in

Formal & Business

5%

Encyclopedias

0%

Academia

0%

Ludwig's WRAP-UP

In summary, "about twenty years" is a common and grammatically sound adverbial phrase used to approximate a duration of time. As indicated by Ludwig AI, the expression functions as an adjunct to express a time period in a variety of contexts, most frequently in news and media and scientific publications. For more formal settings, consider "approximately two decades", while "roughly twenty years" serves as a slightly more informal alternative. Remember to use precise figures when available, rather than relying on approximations. When you aim for a more accurate figure or when the context requires it, using a more precise duration such as "nineteen years" might be more appropriate.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

approximately two decades

Replaces "twenty years" with "two decades" and "about" with "approximately", indicating a slightly more formal tone and emphasis on a precise estimation.

roughly twenty years

Substitutes "about" with "roughly", keeping the approximate duration but with a slightly more informal feel.

in the neighborhood of twenty years

This phrase is a more verbose way of saying "about twenty years", emphasizing the approximation.

around two decades

Combines "around" for "about" with "two decades" for "twenty years", providing a slight variation in wording.

nearly twenty years

Uses "nearly" to indicate the duration is close to twenty years, perhaps slightly less.

almost twenty years

Similar to "nearly twenty years", suggesting the duration is just shy of twenty years.

in the vicinity of twenty years

A more formal and less common way to express an approximate duration of twenty years.

for close to twenty years

Emphasizes that the duration is approaching twenty years, but might not have reached it yet.

a score of years

Uses the archaic term "score" (meaning twenty) to create a more literary or old-fashioned expression.

some twenty years

Replaces "about" with "some", indicating an indefinite quantity of twenty years.

FAQs

How can I use "about twenty years" in a sentence?

You can use "about twenty years" to indicate an approximate duration. For example, "The company has been in business for "about twenty years"."

What are some alternatives to saying "about twenty years"?

Alternatives include "approximately two decades", "roughly twenty years", or "around two decades", depending on the level of formality and precision desired.

Is it more accurate to say "about twenty years" or "approximately twenty years"?

Both phrases are used to indicate an approximation. "About twenty years" is slightly more informal, while "approximately twenty years" may be perceived as more formal and precise, but the difference is minimal.

When should I use "nearly twenty years" instead of "about twenty years"?

Use "nearly twenty years" if the duration is slightly less than twenty years, while "about twenty years" suggests the duration is close to, but not necessarily less than, twenty years.