master switch Meaning in the Cambridge English Dictionary

Meaning of “master switch” in the English Dictionary

"master switch" in British English

See all translations

master switchnoun [C]

uk   us  
a ​switch that can be used to ​turn on or off ​power to all the ​lights or ​machines in a ​building
(Definition of master switch from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “master switch”
in Chinese (Simplified) 主控开关,总开关…
in Chinese (Traditional) 主控開關,總開關…
What is the pronunciation of master switch?
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