three weeks long

USAGE SUMMARY

The part of a sentence "three weeks long" is correct and usable in written English.
You can use this phrase when referring to something that will last for three weeks. For example, "This summer program is three weeks long."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

12 human-written examples

But probably that's because fresh sour cherry season is about three weeks long (and ends soon).

The New York Times - Food

The trip was three weeks long and cost about $250,000.

The New York Times

As IAP is only three weeks long, fluency in the host country's language is not a participation requirement.

Massachusetts Institute of Technology

Dr Jaap Stomphorst, a doping expert, said: "Bridge is played in tournaments two or three weeks long.

Independent

Klinsmann's January camp was three weeks long, but the team looked as if it had never played together.

The New York Times

Those are about 650-hour and 600-hour trips respectively from the bridge near Tapachula, Mexico, on foot — that is, more than three weeks long.

The Washington Post

Human-verified similar examples from authoritative sources

Similar Expressions

48 human-written examples

Most courses are six weeks long.

Cornell University

But his initial teacher training is only six weeks long.

The Guardian

Most courses are five to ten weeks long, and weekend workshops are also available.

Stanford University

First, it was not two weeks long but one night long: a gala, on April 18th.

The New Yorker

The pilot, which was eight weeks long and ran in Arabic and English, reached 320,000 people.

MIT Technology Review

Expert writing Tips

Best practice

When describing the length of an event or program, ensure that "three weeks long" is followed by a noun that specifies what the duration refers to. For example, "The training program is three weeks long."

Common error

Avoid using "three weeks long" as a standalone phrase without specifying what it describes. For instance, instead of saying "The project is three weeks long", clarify with "The project timeline is three weeks long."

Linguistic Context

The phrase "three weeks long" functions as an adjectival phrase, modifying a noun to specify its duration. It describes the length of time something lasts, aligning with the examples Ludwig provides.

Expression frequency: Common

Frequent in

News & Media

35%

Academia

30%

Science

20%

Less common in

Wiki

10%

Formal & Business

5%

Encyclopedias

0.1%

Ludwig's WRAP-UP

In summary, the phrase "three weeks long" is a common and grammatically correct adjectival phrase used to describe a duration. As Ludwig AI confirms, it clearly indicates that something lasts for a period of three weeks. It's versatile enough for use in various contexts, including news, academic writing, and general conversation. Remember to follow it with the noun it modifies (e.g., "The training is "three weeks long""), and consider alternatives like "lasting three weeks" for variety. The examples provided by Ludwig highlight its broad applicability.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

lasting three weeks

Emphasizes the duration of an event or period, replacing 'long' with 'lasting'.

a three-week duration

Transforms the phrase into a noun phrase specifying a defined period.

spanning three weeks

Indicates the period covers or includes three weeks.

for a period of three weeks

Adds formality by explicitly stating the timeframe.

three weeks in length

Replaces 'long' with 'in length' maintaining the same meaning.

a three-week timeframe

Substitutes 'duration' with 'timeframe' maintaining the focus on duration.

three weeks' period

Uses a possessive form, emphasizing the period's duration.

of three weeks' duration

Rearranges the sentence structure and uses 'of duration' to specify the period's extent.

extending three weeks

Highlights the fact that something will last or continue up to three weeks.

covering three weeks

Indicates that something such as an event or a process will take up three weeks.

FAQs

How can I use "three weeks long" in a sentence?

Use "three weeks long" to describe the duration of something. For example, "The summer camp is "three weeks long"" describes the camp's duration.

What are some alternatives to saying "three weeks long"?

You could say "lasting three weeks", "a three-week duration", or "spanning three weeks" as alternatives to ""three weeks long"", depending on the context.

Is it correct to say "three week long" instead of "three weeks long"?

No, the correct form is ""three weeks long"". The plural "weeks" is necessary to correctly indicate the duration.

What's the difference between "a three-week course" and "a course three weeks long"?

"A three-week course" is a more concise and common phrasing. "A course "three weeks long"" is grammatically correct, but less frequently used and can sound slightly awkward.