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off

adverb (NOT OPERATING)
 
 
/ɒf/ US  /ɑːf/

Definition

A2 (especially of machines, electrical devices, lights, etc.) not operating because of not being switched on: Make sure the computers are all off before you go home. Turn/Switch the light/engine/television off.Not functioning
(Definition of off adverb (NOT OPERATING) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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