pylon
Americannoun
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a marking post or tower for guiding aviators, frequently used in races.
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a relatively tall structure at the side of a gate, bridge, or avenue, marking an entrance or approach.
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a monumental tower forming the entrance to an ancient Egyptian temple, consisting either of a pair of tall quadrilateral masonry masses with sloping sides and a doorway between them or of one such mass pierced with a doorway.
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a steel tower or mast carrying high-tension lines, telephone wires, or other cables and lines.
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Aeronautics. a finlike device used to attach engines, auxiliary fuel tanks, bombs, etc., to an aircraft wing or fuselage.
noun
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a large vertical steel tower-like structure supporting high-tension electrical cables
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a post or tower for guiding pilots or marking a turning point in a race
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a streamlined aircraft structure for attaching an engine pod, external fuel tank, etc, to the main body of the aircraft
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a monumental gateway, such as one at the entrance to an ancient Egyptian temple
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a temporary artificial leg
Other Word Forms
Noun Inflected Forms
Etymology
Origin of pylon
First recorded in 1840–50, pylon is from the Greek word pylṓn gateway, gate tower
Explanation
A pylon is a bar or rod that supports some structure, like a bridge or a highway overpass. You might notice the pylons underpinning your city's elevated train tracks. Pylons are often made of steel or concrete, because they are strong substances that can hold a large amount of weight. A pylon needs to be sturdy, since it is supporting a bridge, road, or power lines. Other pylons act as navigational aids, marking paths for cars or small planes. The word's original meaning was "gateway to an Egyptian temple." Pylon is a Greek word that means "gateway," from pyle, "gate or entrance."
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
A firm planning major new pylon routes through Wales needs to better inform residents before accessing their land, a judge has ruled.
From BBC ● Jul. 6, 2026
Stephanie Mills, from Dickey Steps Riding School, told BBC Radio Manchester there were lots of emergency vehicles in the area a huge yellow parachute could be seen attached to the pylon.
From BBC ● Feb. 3, 2026
The ball bounced out of bounds, hitting the pylon on its way out for a safety, extending the Ole Miss lead to 39-34.
From Los Angeles Times ● Jan. 2, 2026
Investigators later determined that improper repair work on the American Airlines plane had damaged parts within its pylon, a structure that attaches the engine to the wing.
From The Wall Street Journal ● Nov. 20, 2025
“The first block was half an inch, the second one a quarter inch...which means we’ve got to take the pylon down three-quarters of an inch.”
From "The Running Dream" by Wendelin Van Draanen
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His board did not survive and smashed into the pier’s pylons.
From Los Angeles Times ● Jun. 13, 2026
One of the big opportunities is Valmont Industries, the largest supplier of poles, pylons, and substation hardware in the U.S.
From Barron's ● May 15, 2026
Valmont has a 40% market share of pylons and poles supplied to the companies behind electric grids.
From Barron's ● May 15, 2026
Features seen in the pictures, including pylons, storage units and markings on paved areas, matched with satellite imagery.
From BBC ● Mar. 29, 2026
The train flew over its pylons, curving toward the center of the trade nexus, speeding over brackish water, bright with leaked waste oil and scrap trash and the stink of chemicals.
From "Ship Breaker" by Paolo Bacigalupi
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.