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

More splicing waited back at the substation, where optical splitters connected neighborhood lines to the town’s central GPON equipment. — IEEE Spectrum, 30 July 2026

As a bonus, Junk notes that nVent also has a substation power business. — Brian Sullivan, CNBC, 30 July 2026

As Nvidia looks to expand, PG&E has doubled the electricity capacity of its substation at 6402 Santa Teresa Blvd. — George Avalos, Mercury News, 29 July 2026

Why This Changes Who Wins Operators need to map long-term infrastructure capacity, grid headroom, water availability and substation backlogs while identifying which approvals will create delays if sequenced incorrectly. — Balaji Sreenivasan, Forbes.com, 27 July 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