substation
noun
sub·sta·tion
ˈsəb-ˌstā-shən 
: a subordinate or subsidiary station: such as
a
: a branch post office
b
: a subsidiary station in which electric current is transformed
c
: a police station serving a particular area
Examples of substation in a Sentence
Recent Examples on the Web
The project includes the Greene Street to Port Covington transmission line, the Port Covington substation, and the Westport to Port Covington transmission line.
—
Jt Moodee Lockman, CBS News, 4 Mar. 2026
The contract is for the CyrusOne data center substation project in the city, and costs from the contract are set to come in at no more than $149,600, a city memo notes.
—Molly Morrow, Chicago Tribune, 3 Mar. 2026
Upgrading substations, transmission lines and generation capacity costs money.
—Kurt Knutsson, FOXNews.com, 27 Feb. 2026
Utilities typically plan new generation, transmission and substations years in advance.
—Fortune, 26 Feb. 2026
See All Example Sentences for substation
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Jt Moodee Lockman, CBS News, 4 Mar. 2026
The contract is for the CyrusOne data center substation project in the city, and costs from the contract are set to come in at no more than $149,600, a city memo notes.
—Molly Morrow, Chicago Tribune, 3 Mar. 2026
Upgrading substations, transmission lines and generation capacity costs money.
—Kurt Knutsson, FOXNews.com, 27 Feb. 2026
Utilities typically plan new generation, transmission and substations years in advance.
—Fortune, 26 Feb. 2026
See All Example Sentences for substation
Cite this Entry
“Substation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/substation. Accessed 10 Mar. 2026.
Copy CitationKids Definition
substation
noun
sub·sta·tion
ˈsəb-ˌstā-shən
1
: a branch post office
2
: a subsidiary station in which electric current is transformed
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