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 site plan that was approved on Tuesday includes four buildings, plus a substation that would only power the data center. — Emily Holshouser, Fort Worth Star-Telegram, 26 Aug. 2026

In the aftermath of the Kenscoff attack, people have asked about the lack of security forces, given that gangs reached the city center, carrying out their assault not far from the mayor’s office and a police substation. — Jacqueline Charles, Miami Herald, 25 Aug. 2026

The largest power transformers cannot be mass-manufactured but are instead custom-built for each utility company’s electrical substations. — Jeremy Hsu, ArsTechnica, 24 Aug. 2026

The program was launched last year and is said to be beneficial, especially for areas with poles that are hard to access, including Lansing, where an entire substation lost power in the storm that hit two weeks ago. — Tara Molina, CBS News, 24 Aug. 2026

Word History

First Known Use

1833, in the meaning defined above

Rhymes for substation

• ablation
• aeration
• bination
• carnation
• cassation
• castration
• causation
• centration
• cessation
• cetacean
• chelation
• citation

Kids Definition

substation

noun

sub·​sta·​tion ˈsəb-ˌstā-shən 

1

: a branch post office

2

: a subsidiary station in which electric current is transformed