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
within and across
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase 'within and across' is correct and usable in written English.
You can use this phrase to refer to something that applies or occurs in multiple places, directions, or contexts. For example, "Teachers must learn to assess student performance both within and across subject areas".
✓ Grammatically correct
Science
News & Media
Academia
Formal & Business
Encyclopedias
Alternative expressions(20)
both inside and outside
internally and externally
both internally and externally
within and beyond
both in and out
both internal and external
within and outside
both within and outside
both in and outside
in and out of
inside and outside
within or outside
both internal and outside
both within and beyond
with and within
integrally linked
with less
both internal and outward
from within and without
both in and around
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
59 human-written examples
Peak anxiety decreased within and across sessions.
This culture, however, might occur within and across class lines.
Encyclopedias
How is intelligence expressed within and across cultures?
Academia
Oversee the development of enterprise architectures within and across agencies.
Academia
Risk of bias within and across studies was assessed.
The simulations were compared both within and across the isoforms.
We connect both within and across borders through words, written and spoken.
News & Media
The older sisters know they're supposed to help the younger ones, within and across families.
News & Media
And it should always be a shared enterprise within and across organisations.
News & Media
When completed, the study will provide an unprecedented view of similarities and differences within and across campuses, and within and across constituencies.
Academia
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
Adjusting phenotypes via within- and across-generational plasticity.
Academia
Expert writing Tips
Best practice
Use "within and across" to highlight the interplay between elements inside a specific boundary and those extending beyond it. For example, 'The company promotes collaboration "within and across" departments to foster innovation'.
Common error
Avoid using "within and across" when only one aspect (either 'within' or 'across') is relevant. Ensure both aspects are truly applicable to maintain clarity. For example, don't say 'We need to improve communication "within and across" the team' if the issue is only internal.
Source & Trust
83%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "within and across" functions as a prepositional phrase that modifies verbs or nouns to indicate scope, range, or extent. It describes actions or attributes that occur both inside a specific boundary or group and also extend beyond it. Ludwig provides numerous examples illustrating its versatility.
Frequent in
Science
39%
News & Media
27%
Academia
15%
Less common in
Formal & Business
12%
Encyclopedias
5%
Wiki
2%
Ludwig's WRAP-UP
The phrase "within and across" is a versatile and grammatically correct expression used to denote scope both inside and outside a defined boundary. As Ludwig AI confirms, it is widely employed in various contexts, ranging from scientific research to news reporting and academic discussions. Its frequency and diverse application across authoritative sources indicate its reliability and precision in conveying comprehensive perspectives. The guidance provided emphasizes its proper use to ensure clarity and avoid misinterpretations, making it a valuable tool for effective communication.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
throughout and among
Changes both the inclusive aspect and combines it with a distributive nuance.
in and between
Uses simpler prepositions to indicate location and separation.
both inside and outside
Replaces directional terms to indicate containment and exclusion.
spanning and including
Rephrases the conjunction indicating broad reach and incorporation.
internally and externally
Modifies the context by using adverbs, indicating location and relation to something.
among and beyond
Suggests distribution and exceeding limits or boundaries.
embracing and surpassing
Conveys a sense of acceptance and going beyond usual limits.
within the confines and exceeding the limits of
Expands the phrase to fully express containment and transcendence.
in all aspects and throughout all areas
Replaces single words with phrases to add a touch of redundancy and formality for emphasis.
encompasses both inside and outside of
Emphasizes containment and transcendence by explicitly mentioning the boundaries
FAQs
How can I use "within and across" in a sentence?
Use "within and across" to indicate movement, influence, or comparison both inside a defined area and beyond it. For instance, "The study analyzed genetic variations "within and across" different populations."
What does "within and across" mean?
"Within and across" suggests something that operates or is relevant both inside a specific boundary or group (within) and also extending to or affecting other boundaries or groups (across).
Are there any synonyms for "within and across"?
While not direct synonyms, you could use phrases like "throughout and among" or "in and between" depending on the specific nuance you wish to convey.
Is it grammatically correct to use "within and across"?
Yes, the phrase "within and across" is grammatically sound and frequently used in formal writing to express a comprehensive scope, as Ludwig AI confirms.
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
4.6/5
Expert rating
Real-world application tested