Standard Lemma guide

Centrex

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • CMU ARPABET: S EH1 N T R AH0 K S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

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

Definition source: English Wiktionary via Wiktextract

Topics: communications, electrical-engineering, engineering, natural-sciences, physical-sciences, telecommunications

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

(CENTRal EXchange) a kind of telephone exchange

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: central, telephone exchange, exchange

History

Etymology

From central exchange.