A pylon can refer to different structures depending on the context. Here are some possible meanings:

• Electricity pylon: A steel lattice tower used to support an overhead power line. Pylons are usually very tall to ensure that the overhead lines cant be reached by the public and can easily straddle roads, rivers, valleys or railway lines without coming into contact with passing vehicles or people. They are also designed to withstand harsh weather conditions.
• Traffic pylon: A cone-shaped object that is usually orange or orange and white, used to keep vehicles away from an area of road temporarily. Traffic pylons are placed on roads or footpaths to temporarily redirect traffic.
• Aircraft pylon: An external mount for equipment such as engines and weapons. Pylons are used to attach external stores to an aircraft, such as bombs, missiles, or fuel tanks.
• Pylon (architecture): The gateway to the inner part of an Ancient Egyptian temple or Christian cathedral. In Ancient Egypt, pylons were massive structures with sloping walls and a central gateway that led to a courtyard.
• Pylon (band): A rock band from Athens, Georgia, US. Pylon was active from 1979 to 1991 and is known for its post-punk and new wave sound.
• Pylon (novel): A 1935 novel by William Faulkner. The novel is set in a fictional town in Mississippi and explores themes of race, class, and gender.
• Pylon (play): A Scottish play. The play is about a group of air traffic controllers who are dealing with the aftermath of a plane crash.

In general, a pylon is a tower-like structure that supports something over a long span. Pylons can be made of different materials, such as steel or concrete, depending on their purpose and the weight they need to support.