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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
a decade and a half
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'a decade and a half' is correct and usable in written English.
It is used to describe a period of time of fifteen years. For example, "In a decade and a half, he had grown from a young teenager to a mature adult."
✓ Grammatically correct
News & Media
Alternative expressions(19)
fifteen years
a period of fifteen years
a year and a half
formal and scientific
forming the largest proportion
a key point to remember
an important thing to note
an underlying theme
eighteen months
a year and six months
approximately 18 months
a little over a year
nearly two years
a day and a half
a week and a half
a year and a half from now
it was carefully recalled
it was carefully designed
clarified through rewriting
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
53 human-written examples
"It didn't disrupt everything for a decade and a half.
News & Media
Much has changed in a decade and a half.
News & Media
A decade and a half later, that time lives on.
News & Media
A decade and a half on, the 86-year-old monarch has never been more popular.
News & Media
A decade and a half later, however, more interesting approaches have emerged.
News & Media
It has taken a decade and a half to lay this foundation.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
6 human-written examples
Earth to their editors: you're about a decade-and-a-half behind the times.
News & Media
But it lay undeveloped for a decade-and-a-half until Grace Mugabe became involved.
News & Media
A review is "crucial" and "a decade-and-a-half overdue," Ebright says.
Science & Research
Imagine that, again, except further conditioned by a decade-and-a-half of an endless War On Terror.
News & Media
You're talking about a decade-and-a-half in prison.
News & Media
Expert writing Tips
Best practice
Use "a decade and a half" to provide a more nuanced and less stark alternative to saying 'fifteen years'. It can add a subtle emphasis on the concept of a 'decade' as a unit of time.
Common error
Avoid using "a decade and a half" when precision is paramount. While generally understood, "fifteen years" provides greater clarity and directness.
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a decade and a half" functions as a time expression, specifying a period of fifteen years. It is commonly used to provide context or indicate duration, similar to using "fifteen years". As Ludwig indicates, the phrase is correct and usable in written English.
Frequent in
News & Media
98%
Encyclopedias
1%
Formal & Business
1%
Less common in
Science
0%
Academia
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "a decade and a half" is a grammatically correct and commonly used expression to denote a period of fifteen years. As Ludwig AI confirms, it's widely accepted in written English, especially in news and media contexts. While "fifteen years" offers more directness, "a decade and a half" can add nuance and stylistic variation. The sources analyzed indicate that it is appropriate for neutral to slightly formal registers. Use "a decade and a half" to add a subtle emphasis on the concept of 'decade' as a unit of time.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
fifteen years
Directly states the number of years, offering a more straightforward alternative.
one and a half decades
Reorders the words while keeping the meaning the same.
about fifteen years
Adds a degree of approximation to the time period.
approximately fifteen years
Adds a more formal degree of approximation to the time period.
a period of fifteen years
Rephrases to emphasize the duration of the time span.
the last fifteen years
Focuses on the most recent fifteen-year period.
over fifteen years
Suggests a time frame slightly exceeding fifteen years.
more than fourteen years
Emphasizes that the period is longer than fourteen years.
around fifteen years
Implies the time frame is close to, but not necessarily exactly, fifteen years.
roughly fifteen years
Indicates an estimated duration of fifteen years.
FAQs
How can I use "a decade and a half" in a sentence?
You can use "a decade and a half" to refer to a period of fifteen years. For example, "The project took "a decade and a half" to complete".
What's another way to say "a decade and a half"?
You can use phrases like "fifteen years", "one and a half decades", or "approximately fifteen years" to express the same duration.
Is it more formal to say "a decade and a half" or "fifteen years"?
"A decade and a half" tends to sound slightly more literary or reflective, while "fifteen years" is more direct and neutral. The choice depends on the tone you want to convey.
Is "a decade and a half" the same as saying "15 years"?
Yes, "a decade and a half" is equivalent to 15 years. It's a less common way to express that specific length of time, often used for stylistic variation or emphasis.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested