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 attack also left all traction substations without power supply in Odesa, forcing the city to temporarily suspend tram and trolleybus services, according to Serhiy Lysak, head of the Odesa City Military Administration. —Fidel Pavlenko, ABC News, 13 Dec. 2025

Ukraine’s largest power company DTEK said 20 electrical substations had been damaged in the Odesa region. —Tim Lister, CNN Money, 13 Dec. 2025

That plan includes new substations and transmission lines in the Carolinas. —Catherine Muccigrosso, Charlotte Observer, 10 Dec. 2025

The watchdog also said its experts were traveling across Ukraine from early to mid-December to check on more than 10 electrical substations vital for nuclear power plants. —Ellie Cook, MSNBC Newsweek, 7 Dec. 2025

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