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a manually or automatically operated telephone facility that handles communications within an office, office building, or organization and that is connected to the public telephone network.
ARE YOU A TRUE BLUE CHAMPION OF THESE "BLUE" SYNONYMS?
We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms.
Question 1 of 8
Which of the following words describes “sky blue”?
Origin of PBX
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use PBX in a sentence
It is a PBX machine and is in the nature of a board up on the wall and it has several sections.Warren Commission (10 of 26): Hearings Vol. X (of 15)|The President's Commission on the Assassination of President Kennedy
British Dictionary definitions for PBX
abbreviation for (in Britain)
private branch exchange; a telephone system that handles the internal and external calls of a building, firm, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012