substation
Americannoun
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a branch of a main post office.
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an auxiliary power station where electrical current is converted, as from AC to DC, voltage is stepped up or down, etc.
noun
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a subsidiary station
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an installation at which electricity is received from one or more power stations for conversion from alternating to direct current, reducing the voltage, or switching before distribution by a low-tension network
Etymology
Origin of substation
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.
His vice president, Muhammed Jallow, said during a visit to a transmitter substation in the town of Bijilo on Saturday that Barrow has set up a taskforce that is "meeting literally on a daily basis".
From Barron's ● Sep. 17, 2026
He said that the main power substation of Sevastopol had been hit during the attacks.
From BBC ● Jun. 24, 2026
Crucially, the project also includes a 550-mile high-voltage direct-current transmission line that delivers wind power from New Mexico to the Palo Verde substation in Arizona, where it then feeds into Southern California.
From Los Angeles Times ● Jun. 18, 2026
EirGrid, the state-owned electric power transmission operator, spent 100 million euros, equivalent to $116 million, building a new substation to serve some 200,000 planned homes nearby.
From The Wall Street Journal ● Jun. 7, 2026
They run, as carefully and as quickly as they can, until they reach the wide platform of a substation.
From "The Kill Order (Maze Runner, Book Four; Origin)" by James Dashner
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.
