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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
vertical
Grammar usage guide and real-world examplesUSAGE SUMMARY
The word "vertical" is correct and usable in written English, and it is often used to describe something that is perpendicular, or pointing straight up and down.
For example, "The mountain wall was a nearly vertical face, and the climber had to use specialized techniques to scale it."
✓ Grammatically correct
News & Media
Wiki
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
53 human-written examples
Chris Froome bursts up the almost vertical street, and Contador can't live with him!
News & Media
Sine and Cosine This relationship is expressed by the two most fundamental equations of trigonometry: x = r × cos θ y = r × sin θ Or, equivalently: cos θ = x/r sin θ = y/r Sin (sine) is the ratio of the vertical side (the side opposite the corner we're looking at) to the hypotenuse.
Wiki
"One time I took LSD and some really strong weed before a concert," Pop recalled, "and it was like when the television goes vertical and doesn't stop".
News & Media
Each block had eight vertical soil stacks to take waste from toilets, basins and baths, but too little water was passing through to flush it all away.
News & Media
Halfway down a vertical cliff face a sheep was grazing at some tufts of grass.
News & Media
If you don't win the respect of the people you're policing, you are going to lose William Bratton Officer Peter Liang was only 27 years old and on the force for 18 months when he and his partner Shaun Landau entered the Pink Houses in East New York in November 2014 to do a "vertical search" – an essential component of broken windows policing.
News & Media
■ The vertical wells will be 10,000ft (3,048m) deep, but between 6,000ft and 7,000ft horizontal drilling will extend a kilometre under the surrounding land to tap into the fat underground shale beds.
News & Media
The great vertical windows, for example, which run up the western elevation like a trio of crystal chimneys, were replaced in 1947.
News & Media
With a cumulative height gain of 14,000 metres and a vertical two kilometre climb to an altitude of 3,200m on the final stage, the TAM promises to be a truly tough race.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
2 human-written examples
Condors hovered above as I descended a near-vertical slope before ascending the other side to some half-deserted 16th-century hamlets accessible only by footpath.
News & Media
Striking the ball with a glancing blow from the inner or outer side of the toe-cap can impart significant spin to the ball about a near-vertical axis, causing it to swerve left or right.
News & Media
Expert writing Tips
Best practice
Use "vertical" to describe the orientation of something that is perpendicular to the horizon or base. It is often used in technical contexts, such as describing lines, planes, or structures.
Common error
Avoid using "vertical" when you actually mean "horizontal". "Vertical" refers to something that is upright, while "horizontal" refers to something that is level or flat. For example, a "vertical line" goes up and down, while a "horizontal line" goes left to right.
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
Vertical functions primarily as an adjective. It describes the orientation of something that is perpendicular to a horizontal plane or baseline. Ludwig AI confirms this, providing numerous examples of "vertical" modifying nouns in various contexts, as shown in the examples.
Frequent in
News & Media
56%
Wiki
14%
Science
12%
Less common in
Formal & Business
8%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "vertical" is a versatile adjective used to describe something that is perpendicular to the horizon. As Ludwig AI confirms, it's grammatically sound and widely used in a variety of contexts. While the term is generally accurate, remember to contrast it with "horizontal" to avoid confusion. It is most frequently encountered in "News & Media", "Wiki", and "Science" contexts. For alternative phrasing, consider ""perpendicular"" or "upright" depending on the specific nuances you want to convey.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
perpendicular
Implies a precise 90-degree angle relationship, often used in geometric contexts.
upright
Focuses on the orientation of standing straight, often used for physical objects.
erect
Emphasizes a rigid and upward stance, suggesting a formal or deliberate positioning.
plumb
Indicates perfectly vertical alignment as determined by a plumb line, emphasizing accuracy.
sheer
Describes a steep or abrupt vertical surface, often used for cliffs or walls.
steep
Suggests a sharp and inclined ascent or descent, implying difficulty or challenge.
perpendicular to the horizon
More descriptive, explicitly stating the relationship to the horizon line.
at right angles
A more general term indicating a 90-degree angle, not necessarily vertical.
straight up
A simple and direct way to describe upward direction, lacking the formality of "vertical".
standing on end
Describes something positioned vertically, often implying instability or precariousness.
FAQs
How is "vertical" used in geometry?
In geometry, "vertical" describes a line or axis that is perpendicular to the horizontal axis. It is a fundamental concept in coordinate systems and spatial relationships. You might see it contrasted with "horizontal" in geometric descriptions.
What's the difference between "vertical" and "upright"?
"Vertical" refers to a precise orientation, perpendicular to a baseline or the horizon. "Upright" simply means standing or positioned straight up, which may not be perfectly "perpendicular".
How do I describe something almost vertical?
To describe something that is close to, but not perfectly, vertical, you can use phrases like "nearly vertical", "almost vertical", or "near-"vertical"".
Where does the term "vertical integration" come from?
"Vertical integration" is a business strategy where a company controls multiple stages of its supply chain, from production to distribution. This ""vertical"" structure contrasts with horizontal integration, where a company expands within the same industry.
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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
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested