substation

noun

sub·​sta·​tion ˈsəb-ˌstā-shən How to pronounce substation (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Over the last three months, Russia has targeted 11 hydroelectric power plants and 45 heat and power plants, and has hit electrical substations 151 times. Svitlana Vlasova, CNN Money, 24 Jan. 2026 Public safety projects would receive $91 million for an expansion of Fire Station 26 in Northeast Austin and a Canyon Creek Northwest police substation. Chaya Tong, Austin American Statesman, 23 Jan. 2026 But here’s where the impact of the substation goes off the rails — the idea that prospective free agents won’t come to the 49ers for fear of injury. Jerry McDonald, Mercury News, 23 Jan. 2026 In contrast, other southern states operate within different regional grid markets and do not have a unified response plan; while some winterization efforts have been made at larger plants and critical substations, significant improvements remain necessary. Matt Randolph, Forbes.com, 22 Jan. 2026 See All Example Sentences for substation

Word History

First Known Use

1833, in the meaning defined above

Time Traveler
The first known use of substation was in 1833

Browse Nearby Words

Cite this Entry

“Substation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/substation. Accessed 27 Jan. 2026.

Kids Definition

substation

noun
sub·​sta·​tion ˈsəb-ˌstā-shən How to pronounce substation (audio)
1
: a branch post office
2
: a subsidiary station in which electric current is transformed

More from Merriam-Webster on substation

Last Updated: - Updated example sentences
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