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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
roughly half the time
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "roughly half the time" is correct and usable in written English.
It can be used to indicate an approximate frequency or occurrence of an event or situation. Example: "The experiment yielded successful results roughly half the time, suggesting that further research is needed."
✓ Grammatically correct
News & Media
Science
Alternative expressions(19)
about half the time
in half of the instances
fifty-fifty
on approximately half of occasions
in balanced amounts
in equal portions
in equal parts
in other parts
pro rata
equally
half and half
in similar measure
in equivalent amounts
fifty-fifty split
in equal part
in equal proportions
equal parts
in equal measure
equally distributed
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
15 human-written examples
That's roughly half the time that it took for the best human solvers to finish, but here's the thing: points are awarded here for accuracy as well as for speed, and Dr. Fill made a mistake.
News & Media
Jim Zemlin, executive director of the non-profit Linux Foundation, has been using Linux for about as long as I have, which is roughly half the time that Linux has been around.
News & Media
Compare that to the claustrophobic enclosures of MGS4's rigid design, where ostensibly large areas often had few variations to get through and roughly half the time in-game interaction meant pressing the X button to trigger a flashback during a cutscene.
News & Media
"We are being called on to develop a vaccine in roughly half the time it normally takes," Mr. Ignon said.
News & Media
Mr. Santorum, with 5 minutes and 28 seconds of airtime, was on the screen roughly half the time that Mr. Romney was.
News & Media
The Mercedes C63 AMG, with 451 horsepower, rockets to 60 m.p.h. in less than 4 seconds — roughly half the time of the original M3.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
45 human-written examples
The group is also beginning a new program, Fleetwood 2nd Stage, in which plays will be performed with scenery, lighting and costumes, and without scripts, but with roughly half the rehearsal time as mainstage plays.
News & Media
At the bottom, there is an L2 cache for the global memory with roughly half the access time.
Science
Although equal on average, the renewable power generation of a fully renewable country will be larger than the load for roughly half of the time, and smaller for the other half.
The data reveal that while Xenopus tadpoles showed no preference for either color light, spending roughly half of the time in both blue and red halves, zebrafish spent approximately 70% of the time under the blue light (Fig. 6A, t test p = 0.032).
Science
It's because I have had sex with more than one person, and I had unmarried sex quite a few times, and roughly half the people have been men and the other half have been women, and then there were a few people in between those genders who identified in differing ways, so it's up to me to define myself, too, and so that would be queer.
News & Media
Expert writing Tips
Best practice
When using "roughly half the time", ensure that the context clearly indicates what the 'time' refers to. Be specific to avoid ambiguity. For instance, instead of saying "It rains roughly half the time", specify "It rains roughly half the time during the summer months".
Common error
Avoid using "roughly half the time" when you have precise data. If you know the exact percentage or frequency, use that instead of an approximation. This enhances credibility and clarity.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "roughly half the time" functions as an adverbial phrase, modifying a verb or clause to indicate frequency or duration. It expresses that an event or situation occurs approximately 50% of the time. Ludwig AI confirms its correct usage.
Frequent in
News & Media
60%
Science
30%
Wiki
10%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "roughly half the time" is a grammatically sound and frequently employed expression used to denote an approximate frequency of 50%. As Ludwig AI confirms, its primary function is to act as an adverbial phrase, modifying verbs or clauses. Its usage is prevalent across various contexts, including news, science, and general writing, showcasing its versatility and broad applicability. When employing this phrase, ensure clarity by specifying the 'time' being referenced. While "roughly half the time" provides a convenient approximation, it's crucial to avoid its use when precise data is available, as accuracy enhances credibility.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
approximately half the time
Replaces "roughly" with "approximately", maintaining the same meaning.
about half the time
Substitutes "roughly" with "about", offering a slightly less formal tone.
around half the time
Uses "around" instead of "roughly", providing a similar level of approximation.
nearly half the time
Employs "nearly" to suggest a value close to but not quite half.
close to half the time
Expresses the idea of being in the vicinity of half the time.
half the time, give or take
Adds "give or take" to explicitly acknowledge the approximate nature of the estimate.
in approximately 50% of cases
Rephrases to use a percentage instead of a fraction, changing the structure.
in about 50% of instances
Similar to the previous, replacing "cases" with "instances".
fifty percent of the time, more or less
Explicitly states "fifty percent" with an added qualifier for approximation.
something like half the time
Uses a more colloquial phrasing with "something like".
FAQs
How can I use "roughly half the time" in a sentence?
You can use "roughly half the time" to indicate an approximate frequency or occurrence of an event. For example, "The experiment yielded successful results roughly half the time, suggesting that further research is needed."
What are some alternatives to "roughly half the time"?
Alternatives include "approximately half the time", "about half the time", or "nearly half the time", depending on the context and desired level of formality.
Is it better to say "roughly half the time" or "approximately 50% of the time"?
Both "roughly half the time" and "approximately 50% of the time" are acceptable. The choice depends on the context; the former is more colloquial, while the latter is more precise.
What does "roughly" imply in the phrase "roughly half the time"?
The word "roughly" indicates that the quantity is an approximation, not an exact figure. It suggests that the actual value may be slightly more or less than precisely half.
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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
4.5/5
Expert rating
Real-world application tested