: 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.
The development will also include a new, private and Evergy-owned substation to serve the site along with 41 diesel generators in case of power failure. — Taylor O'Connor, Kansas City Star, 27 Sep. 2026 In parts of Africa, including Zambia and Tanzania, the team charged at national substations under supervision. — Kaif Shaikh, Interesting Engineering, 19 Sep. 2026 On the other hand, power generation, transmission, and substation infrastructure are being built out well ahead of schedule across the country. — CNBC, 18 Sep. 2026 Earlier this summer, the company filed a proposal that would put Microsoft on the hook for lines and substations serving its Mount Pleasant data center campus. — Claudia Levens, jsonline.com, 16 Sep. 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 6 Oct. 2026.

Kids Definition

substation

noun
1
: a branch post office
2
: a subsidiary station in which electric current is transformed

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