a long duration

USAGE SUMMARY

The phrase "a long duration" is correct and usable in written English.
It can be used to describe an extended period of time in various contexts, such as events, processes, or experiences. Example: "The project will take a long duration to complete, so we need to plan accordingly."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

53 human-written examples

"It was for a long duration.

The New York Times

BLAST will fly from a long duration balloon.

Advances in Space Research

Existing methods require a long duration on cluster head voting.

Computer Networks

"It's been a long duration, ongoing event," he said.

The New York Times

A long duration, heavy rain event is bearing down on the D.C. region.

The Washington Post

Moreover, a long duration of volcanism often results in a warming of the lithosphere.

Britannica

Human-verified similar examples from authoritative sources

Similar Expressions

7 human-written examples

In any case, the message is the same: a long-duration flood, surge and wind event.

The Washington Post

"It really is a tremendous privilege to be assigned to a long-duration mission to the ISS".

The Guardian

It is designed as a "long-duration, non-maintainable, space-exposed payload".

Acta Astronautica

This can include Russian classes if they are to be part of a long-duration crew on the ISS.

Britannica

The increased swell aspect is a long-duration event, with high wave heights expected from at least Monday through Thursday.

The Washington Post

Expert writing Tips

Best practice

When using "a long duration", ensure the context clearly defines what is being measured. For instance, specify if you're referring to the duration of a study, a treatment, or an event.

Common error

Avoid using phrases like "long duration of time" as "duration" already implies time. Instead, simply use "a long duration" or "a long time".

Linguistic Context

The phrase "a long duration" functions as a noun phrase, typically serving as a subject complement or object in a sentence. Ludwig AI confirms its correct and frequent usage in various contexts, as shown in the examples provided.

Expression frequency: Very common

Frequent in

Science

37%

News & Media

32%

Academia

12%

Less common in

Encyclopedias

2%

Wiki

5%

Formal & Business

2%

Ludwig's WRAP-UP

In summary, the phrase "a long duration" is a grammatically correct and commonly used noun phrase to describe an extended period. As Ludwig AI indicates, it appears frequently in diverse contexts, including scientific research, news reports, and academic discussions. While generally neutral in register, its usage can vary depending on the specific domain. It is essential to avoid redundancy by omitting "of time" and ensuring the context clarifies what the duration refers to. Alternatives such as "a prolonged period" or "an extended time" can be used for stylistic variation.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

a prolonged period

Replaces "duration" with "period", emphasizing the length of time.

an extended time

Uses simpler vocabulary to convey the same meaning.

a lengthy interval

Substitutes "duration" with "interval", focusing on the space between two points in time.

a drawn-out process

Highlights that something takes more time than expected to finish.

a considerable time

Indicates that amount of time is significant.

a protracted delay

Refers to an extended period of waiting or postponement.

a sustained effort

Implies continuous exertion over an extended timeframe.

a prolonged exposure

Emphasizes the state of being subjected to something for an extended time.

a lasting effect

Focuses on the enduring impact or consequence.

a chronic condition

Describes an illness persisting for a long time.

FAQs

How can I use "a long duration" in a sentence?

You can use "a long duration" to describe the length of an event, process, or condition. For example, "The study involved monitoring patients for "a long duration" to assess the treatment's effectiveness."

What are some alternatives to "a long duration"?

Alternatives to "a long duration" include "a prolonged period", "an extended time", or "a lengthy interval". The best choice depends on the specific context.

Is it redundant to say "a long duration of time"?

Yes, saying "a long duration of time" is redundant because "duration" inherently refers to a period of time. It's more concise and grammatically sound to simply use "a long duration".

What is the difference between "a long duration" and "a long time"?

While both phrases refer to an extended period, "a long duration" is often used in more formal or technical contexts, whereas "a long time" is generally used in everyday conversation. You might say "The experiment required "a long duration" of observation", but "It took "a long time" to finish the project".