tri-state

American

[trahy-steyt] / ˈtraɪˌsteɪt /

Or tristate

adjective

of, relating to, or involving three adjoining states.

a tri-state league.
of, relating to, or involving the region where three states adjoin.

the historic tristate mining district of southwest Missouri, southeast Kansas, and northeast Oklahoma.

Etymology

Origin of tri-state

First recorded in 1895–1900; tri- + state

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Building is still a nascent practice in the tri-state area.

From The Wall Street Journal • Mar. 19, 2026

No shelter or sanctuary in the tri-state area has room, and though Apollo presents a swath of new challenges in her life, she feels awful about the thought of separating from him.

From Salon • Mar. 29, 2025

Governors from the tri-state area have also deployed National Guard troops and state emergency responders to aid the efforts.

From Slate • Oct. 1, 2024

The Clairton Sportsmen’s Club, on 180 acres south of Pittsburgh, bills itself as offering “one of the premier shooting facilities in the tri-state area” and has more than 2,000 members.

From Los Angeles Times • Jul. 14, 2024

They wanted me to stay in the tri-state area for college so I could continue training at the club.

From "Proud" by Ibtihaj Muhammad

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023