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
line of focus
Grammar usage guide and real-world examplesUSAGE SUMMARY
'line of focus' is correct and usable in written English.
You can use this term when you need to describe the primary focus or direction of an argument or piece of writing. For example, "This essay will take a feminist line of focus, examining the role of gender in the film."
✓ Grammatically correct
News & Media
Science
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
6 human-written examples
The narrative leisurely achieves a straight line of focus through a mist of contrapuntal images and references that initially work as much through sound as literal sense.
News & Media
"The way I use it, it's not merely a line of focus, but a plane that can go back through the space of the picture, keeping certain objects sharp and others defocused, reflecting a plane in the three-dimensional scene".
News & Media
And yet, Burnett's line of focus isn't the traditional victory pose.
News & Media
The challenge is keeping that endless supply of distractions far away from your line of focus.
News & Media
To be consistent with Peiffer and coworkers [4], we represent Ballele as the position of the upper informative line of focus, giving a range of 0.5 to 1.
Science
The line of focus for streptavidin was not quite as close to the positive electrode edge of the bilayer as the Texas Red-DHPE and biotin-cap-DOPE gradient.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
53 human-written examples
A value of 0.5 indicates a normal (2n) Ballele appearance with lines of focus at 1, 0 and 0.5, while other values (between 1 and 0.5 indicate there are 4 lines of focus 1, 0, Ballele and 1-Ballele).
Science
Instances where there is only 1 parental chromosome present result in only 2 lines of focus (0 & 1) (see Figure 1a, LOH, N-LOH and AMP-LOH) while all other instances result in 4 lines of focus.
Science
A value of 1 means only one parental chromosome is present such that no SNPs are informative (lines of focus at 0 and 1) as is the case for complete LOH.
Science
McBride says he rejected "the main Labour attack lines" of focusing on Cameron and Osborne's poshness, preferring to try to paint them as "incompetent and weak", and as "kids" who weren't up to the job.
News & Media
Any number of problems surfaced -- muffled lines, out-of-focus shots -- but they found enough good material to work with.
News & Media
Expert writing Tips
Best practice
Use "line of focus" when you want to emphasize a specific direction or path that attention, effort, or investigation is taking. For example, "The company's line of focus shifted to sustainable energy solutions."
Common error
Avoid using "line of focus" when referring to a general subject without a specific directional component. For instance, don't say "The line of focus is education" if you simply mean "The focus is education".
Source & Trust
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "line of focus" functions primarily as a noun phrase that specifies the direction or subject of attention, effort, or inquiry. This is supported by Ludwig AI, which validates its proper usage in written English. Examples provided by Ludwig illustrate its use in describing a focused approach or central element.
Frequent in
News & Media
29%
Science
57%
Wiki
14%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "line of focus" is a grammatically sound phrase that is most commonly used to indicate a specific direction or subject that requires attention or effort. Ludwig AI confirms the validity of this expression. While it might not be very common, it is used across diverse contexts like news, science, and general knowledge. When using "line of focus", remember to ensure that it accurately conveys a specific direction or area of concentration and avoid using it as a general substitute for "focus".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Main focus
Simplifies the phrase by removing "line of" while retaining the core meaning.
Principal focus
Similar to main focus but uses "principal" for emphasis.
Point of focus
Replaces "line" with "point", emphasizing a specific spot rather than a direction.
Area of focus
Shifts from a linear concept to a broader area that is being emphasized.
Direction of attention
More explicitly describes the path or way attention is being directed.
Center of attention
Emphasizes where the primary interest or activity is directed.
Primary concern
Highlights what is most important or requiring attention.
Thrust of the argument
Highlights the core direction or force of a particular argument.
Central theme
Used specifically when referring to the main idea in a piece of work.
Key aspect
Focuses on an important element or feature.
FAQs
How can I use "line of focus" in a sentence?
You can use "line of focus" to describe the direction or area that someone or something is concentrating on. For example: "The detective's line of focus was on the suspect's alibi."
What is a good alternative to "line of focus"?
Alternatives to "line of focus" include "main focus", "point of focus", or "area of focus", depending on the specific context.
Is it better to say "line of focus" or "area of focus"?
The choice between "line of focus" and "area of focus" depends on whether you're emphasizing a specific direction (line) or a broader subject (area). Use "line of focus" when direction is important.
What does "line of focus" mean in the context of photography?
In photography, "line of focus" can refer to the plane within the image that is sharpest and most clearly defined. The photographer manipulates this plane to guide the viewer's attention.
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
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested