horizontal: meaning, definition, pronunciation and examples
High frequencyNeutral to formal. Common in technical, academic, and everyday contexts.
Quick answer
What does “horizontal” mean?
Parallel to the plane of the horizon.
Audio
Pronunciation
Definition
Meaning and Definition
Parallel to the plane of the horizon; at right angles to the vertical; level, flat.
Used figuratively to describe organizational structure (flat), integration across sectors, or a state of rest or stability.
Dialectal Variation
British vs American Usage
Differences
Spelling and meaning are identical. Very minor potential differences in technical fields (e.g., engineering drawing standards).
Connotations
Identical in both varieties.
Frequency
Equally common in both varieties.
Grammar
How to Use “horizontal” in a Sentence
Horizontal + noun (attributive: horizontal line)Be/remain/lie + horizontal (predicative adjective)Vocabulary
Collocations
Examples
Examples of “horizontal” in a Sentence
adverb
British English
- The beam runs horizontally across the ceiling.
- Scroll horizontally to see the full spreadsheet.
American English
- The stripes are painted horizontally.
- The business expanded horizontally by acquiring competitors.
adjective
British English
- Ensure the shelf is perfectly horizontal before you secure it.
- The data is presented on a horizontal bar chart.
American English
- Lay the patient in a horizontal position.
- The company pursued a strategy of horizontal integration.
Usage
Meaning in Context
Business
Refers to 'horizontal integration' (merging companies at the same stage of production).
Academic
Used in mathematics (axes), geography (horizon), and physics (forces).
Everyday
Describing physical objects (shelves, lines), posture, or layout.
Technical
Precise geometric or engineering term denoting a specific orientation.
Watch out
Common Mistakes When Using “horizontal”
- Incorrect pronunciation: /ˈhɔːraɪzɒntl/ (misplacing stress).
- Confusing with 'parallel' (horizontal is a specific type of parallel).
- Using as a verb (it is not standard; 'to horizontalize' is extremely rare).
FAQ
Frequently Asked Questions
No, 'horizontal' is not a standard verb. The related adverb is 'horizontally'.
The direct and most common opposite is 'vertical'.
Yes. 'Flat' describes a surface without curves or bumps. 'Horizontal' describes an orientation parallel to the horizon. A surface can be flat but not horizontal (e.g., a vertical wall).
In British English: /ˌhɒrɪˈzɒntl/. In American English: /ˌhɔːrɪˈzɑːntl/. The stress is on the third syllable ('ZON').
Parallel to the plane of the horizon.
Horizontal is usually neutral to formal. common in technical, academic, and everyday contexts. in register.
Phrases
Idioms & Phrases
- “horizontal job transfer”
- “horizontal drinking (colloquial, drinking while lying down)”
Learning
Memory Aids
Mnemonic
Think of the HORIZON (the root of the word) – the line where earth and sky meet. A horizontal line is like the horizon.
Conceptual Metaphor
STABILITY IS HORIZONTAL (e.g., 'The market is flat'), PROGRESS IS VERTICAL (vs. lack of progress is horizontal).
Practice
Quiz
In a business context, what does 'horizontal integration' typically refer to?