Subscriber login
Password
Forgot your password?
Library card login
Login with Shibboleth® »
Login with Athens »
Close menu
Oxford Dictionaries Online
The world's most trusted dictionaries
About
Subscriber services
What's new
Contact us
Help
Subscribe now
Already a subscriber or in a subscribing organization?
Login
Dictionary
Other language resources
US English
World English
Dictionary
Better writing
World of words
Puzzles and games
For children and schools
For learners of English
Email
Cite
PBX
(PBX)
abbreviation
private branch exchange, a private telephone switchboard.
More words in this category
airwaves
alias
answerphone
asynchronous
babble
blank call
GSM
LW
microcell
MMS
multiplex
PM
radio frequency
radiotelex
RF
ringing tone
SOS
subscriber trunk dialling
telex
Nearby Words
paysan
payslip
payt.
Payton, Walter
paywall
Paz, Octavio
Pb
pb
PBS
PBX
PC
PC card
PC mod
PCAS
PCB
PCI
PCM
PCMCIA
PCN