a five year long

USAGE SUMMARY

The phrase "a five year long" is not correct in standard written English.
It should be "a five-year-long" when used as a compound adjective before a noun. Example: "She completed a five-year-long project that transformed the community."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

2 human-written examples

This project is a five year long project that was started in fall 2010 and should be finished in 2015.

Journal of Big Data

In October of 2008, following a five year long "miracle" remission, I had to resign from three jobs when I was hit by a fatal flare.

Huffington Post

Human-verified similar examples from authoritative sources

Similar Expressions

57 human-written examples

Stanley succumbed to pancreatic cancer after a three year long courageous battle.

The New York Times

Finding and telling the stories of entrepreneurs and the startup ecosystem is in TechCrunch's DNA — Startup Battlefield is a ten year long tradition that supports this mission.

TechCrunch

A sixteen year long dataset of mesospheric OI 557.7 nm green line nightglow emission rate, measured over Kiso (35.79°N, 137.63°E), Japan using ground-based photometers is spectrally investigated using the Hilbert-Huang Transform (HHT).

Earth, Planets and Space

Rowley's memo to FBI Director Robert Mueller in connection with the Joint Intelligence Committee's Inquiry led to a two year long Department of Justice Inspector General investigation.

Huffington Post

We have a hundred year long experience with corrupt government in this country.

Environmental Management

The majority of asylum applications have come from people fleeing a five year-long civil war in Syria that has also engulfed parts of Iraq.

Vice

Each one of His days might have been a million years long.

The New Yorker

And long term, way long term, a thousand years long term, it's one of the only relics of 20th-century culture that will actually survive.

Vice

Case in point: Longplayer, a thousand years long musical composition conceptualized by Jem Finer in league with Artangel and Brian Eno, naturally, plus a whole collective of new agers.

Vice

Expert writing Tips

Best practice

When describing a period of time as an adjective, use the hyphenated form "five-year-long" before the noun it modifies (e.g., "a five-year-long study").

Common error

Avoid using "a five year long" as an open compound adjective. Always hyphenate it as "five-year-long" to ensure grammatical correctness and clarity. For example, instead of "a five year long project", write "a five-year-long project".

Linguistic Context

The phrase "a five year long" functions as an adjectival phrase attempting to modify a noun, describing its duration. As Ludwig AI explains, the correct form should include hyphens to properly function as a compound adjective: "a five-year-long".

Expression frequency: Uncommon

Frequent in

News & Media

50%

Science

50%

Formal & Business

0%

Less common in

Academia

0%

Wiki

0%

Encyclopedias

0%

Ludwig's WRAP-UP

In summary, while the phrase "a five year long" appears in various sources, it's considered grammatically incorrect in standard written English. According to Ludwig AI, the correct form is "a five-year-long", using hyphens to create a compound adjective. Its communicative purpose is to specify a duration, but its inconsistent grammatical structure limits its use in highly formal settings. Always hyphenate when using it as an adjective to ensure clarity and grammatical correctness.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

a five-year period

Replaces the adjective phrase with a noun phrase indicating a period of time.

a five-year duration

Similar to "period", duration is used as a noun indicating the length of time.

spanning five years

Changes the structure to a verb phrase, emphasizing the span of time.

lasting five years

Similar to "spanning", but emphasizes the continuous nature of the duration.

over a five-year time frame

Uses "time frame" to specify the context of the duration.

for a five-year term

Indicates a specific term or fixed period of five years.

during a five-year interval

Replaces "long" with "interval", specifying a space of time between events.

a five years' time

Uses a possessive form to indicate a period of time.

across five years

Emphasizes the progression or passage of time over the five-year period.

a five-year stint

Uses the word "stint" to imply a period of time spent doing a particular activity.

FAQs

How do I correctly use "a five year long" in a sentence?

The correct form is to use a hyphen: "a five-year-long". For example, "She embarked on "a five-year-long journey"".

What's the best way to describe a period of five years?

You can use phrases like "five-year period", "five-year duration", or "spanning five years" depending on the context.

Is "a five year long project" grammatically correct?

No, it's not. The correct way to phrase it is "a five-year-long project". The hyphens are necessary when using it as a compound adjective.

What can I say instead of "a five year long"?

Alternatives include "a five-year period", "a duration of five years", or simply "five years" depending on the intended meaning.