# Centrex

> English word · Noun

## Definitions
1. A service similar to a private branch exchange, but providing switching at the central office instead of at the customer's premises.

## Etymology
From central exchange.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/centrex