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

Every transformer on the grid—from the cylinders perched on utility lines to the big spiky devices at substations—trades voltage for current at a fixed ratio. — Alex Pasternack, Scientific American, 20 Oct. 2026

The Russian nighttime barrage hit 28 substations and other critical energy facilities, depriving more than a half-million people of electricity, heat and running water, Zelenskyy said on social media. — Samya Kullab, Arkansas Online, 20 Oct. 2026

Expand one substation, but what happens to power flowing elsewhere? — Charlie Sanchez, Forbes.com, 20 Oct. 2026

Russian barrage kills a 21-year-old woman The Russian nighttime barrage hit 28 substations and other crucial energy facilities, depriving more than half a million people of electricity, heat and running water, Zelensky said on social media. — Samya Kullab, Los Angeles Times, 19 Oct. 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