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

Pavlo Pakhomenko/NurPhoto/Getty The strikes hit an electricity substation in the southern Odesa region, as well as a school building in the southern Zaporizhzhia region, according to officials. —CBS News, 26 Feb. 2026

Utilities typically plan new generation, transmission and substations years in advance. —Fortune, 26 Feb. 2026

The agriculture department also is loaning Southwest Iowa Rural Electric Cooperative $11 million for improvements that include distribution equipment and a substation. —Des Moines Register, 25 Feb. 2026

But what’s really needed are additional air-defense systems to protect substations and power plants, as well as more transformers and grid-hardening equipment. —Bloomberg Opinion, Twin Cities, 24 Feb. 2026

Word History

First Known Use

1833, in the meaning defined above

Rhymes for substation

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

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