Used and loved by millions
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
in the span between
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "in the span between" is correct and usable in written English.
It can be used to describe a duration or interval of time between two points or events. Example: "In the span between the two meetings, I managed to complete several important tasks."
✓ Grammatically correct
Science
News & Media
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
3 human-written examples
Robert Woolfolk's legs were too long to unfold in the span between seat and pedals, so he rode with his knees doubled and knobbing up near the handlebars, like a clown on a tricycle.
News & Media
17– 20 This measure of adherence is computed across all antiretroviral medications as the number of doses in an interval (bounded by a first and last fill date of drug, requiring at least two fills per drug) for which the patient has drug in possession as a percentage of total intended doses in the span between the first and last filling.
In the case of neighboring SNPs that were not converted, we modeled the likelihood as equal to the probability of no GC occurring in the span between the unconverted SNPs plus the probability of exactly one GC within the span, but with GC tract lengths short enough so as to not have converted the flanking SNPs.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
57 human-written examples
In New York, the span between crummy places and fantastic ones is wide.
News & Media
And in that transition, the span between check-in and check-out, we are liberated from the uncomfortable truth that, sooner than anyone likes to imagine, the trip has ended and the time has come to pay the bill.
News & Media
In the Regulation of the Buildings to be Constructed in Disaster Regions (Trianafillou 1998), there is the condition that if FRP is used in the form of plates the span between the axes of plates (s f ) will be smaller than the sum of plate width (w f ) and one-fourth of the useful beam height (d) (w f + d/4) (Trianafillou 1998).
In the meantime, state planners spent the span between 1992 and 1999 meeting with county and municipal leaders and trying to reach a consensus on a revised version of the plan.
News & Media
In the specimen with two anchorages, the span between anchorage axes was prepared as 180 mm, the specimen with three anchorages anchorage the span between anchorage axes was prepared as 90 mm and the specimen with four anchorages the span between anchorage axes was prepared as 60 mm.
Variation of progesterone values (15.9-41.0 nmol/L) between bitches was probably due to inconsistency in pre-ovulatory follicle luteinisation [ 36] as well as to the variability in the time span between the pre-ovulatory LH-surge and ovulation, which has been shown to range from 24 to more than 96 hours [ 19].
The architecture of the layer pyramid allows a secure datation in the time span between the rulership of king Sekhemkhet and that of king Snofru, the founder of the 4th Dynasty.
Wiki
In the time span between the 2 GPS connections, the user's footsteps and walking impact strength are measured by the accelerometer sensor, and then the algorithm estimates the user's walking stride, depending on the walking impact.
Expert writing Tips
Best practice
When using "in the span between", ensure that the start and end points of the duration are clearly defined to avoid ambiguity.
Common error
Avoid using "in the span between" without specifying the units of time involved. For example, instead of saying "much happened in the span between", specify the time period: "much happened in the span of a year between those events."
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "in the span between" functions as a prepositional phrase that modifies a noun or verb by specifying a duration or interval. As Ludwig AI indicates, it is a correct and usable expression in English, describing a period separating two distinct points or events.
Frequent in
Science
60%
News & Media
30%
Formal & Business
10%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "in the span between" is a prepositional phrase used to define a duration or interval separating two points or events. As Ludwig AI reports, it is grammatically correct and usable in English. Its usage is relatively rare, appearing primarily in scientific and news contexts. When employing this phrase, ensure clarity by specifying the start and end points of the duration. While there are several alternative phrases, such as "during the period between" or "within the timeframe of", each carries subtle differences in meaning and emphasis. The choice depends on the specific context and the desired tone.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
during the period between
Replaces "span" with "period", emphasizing duration.
during the interval between
Substitutes "span" with "interval", focusing on the space between.
within the timeframe of
Uses "timeframe" to highlight a specific period.
in the duration from...to
Specifies the start and end points explicitly.
over the course of
Implies a progression or development during the period.
from...to
A more concise way to indicate the start and end.
between...and
A simple and direct way to specify the boundaries.
in the time elapsed from
Focuses on the time that has passed.
in the period stretching from
Emphasizes the continuous nature of the time period.
in the interim from
Highlights the time used as a temporary measure
FAQs
How can I use "in the span between" in a sentence?
Use "in the span between" to describe a period separating two events or points in time, like: "Significant changes occurred "in the span between" the two world wars".
What's a formal alternative to "in the span between"?
For a more formal tone, consider using "during the interval between" or "within the timeframe of" instead of "in the span between".
Is it always necessary to specify a time unit after "in the span between"?
While not always required, specifying a time unit (e.g., "in the span of five years between") enhances clarity and avoids ambiguity, especially in technical or scientific writing.
How does "in the span between" differ from "between...and"?
"Between...and" directly indicates the start and end points, while "in the span between" emphasizes the duration or period separating them. The phrase "between check-in and check-out" focuses on the boundaries, whereas ""in the span between" check-in and check-out" highlights the experience during that period.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested