go off Meaning in the Cambridge English Dictionary
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Meaning of “go off” in the English Dictionary

"go off" in British English

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go off

phrasal verb with go uk   /ɡəʊ/  us   /ɡoʊ/ verb (present participle going, past tense went, past participle gone)

go off (STOP WORKING)

B1 If a ​light or a ​machine goes off, it ​stopsworking: The ​lights went off in several ​villages because of the ​storm.
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go off (EXPLODE)

C1 If a ​bomb goes off, it ​explodes: The bomb went off at ​midday.C1 If a ​gun goes off, it ​fires: His ​gun went off ​accidentally.
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go off (FOOD)

B2 UK If ​food or ​drink goes off, it is not good to ​eat or ​drink any more because it is too ​old: This ​baconsmells a ​bitfunny - do you ​think it's gone off?
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go off (NOISE)

B2 If a ​warningdevice goes off, it ​starts to ​ringloudly or make a ​loudnoise: The alarm should go off ​automatically as ​soon as ​smoke is ​detected. Didn't you ​hearyour alarmclock going off this ​morning?
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go off (LEAVE)

B1 to ​leave a ​place and go ​somewhereelse: She's gone off on ​holiday with ​Tony.

go off (HAPPEN)

to ​happen in a ​particular way: The ​protestmarch went off ​peacefully.

go off (BECOME WORSE)

UK to ​becomeworse in ​quality: That paper's really gone off since they got that new ​editor.
(Definition of go off from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"go off" in American English

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go off

phrasal verb with go  us   /ɡoʊ/ verb (present tense goes, present participle going, past tense went  /went/ , past participle gone  /ɡɔn, ɡɑn/ )
to ​explode, or to ​firebullets: The ​deerran away just before the hunter’s ​gun went off. If a ​specialsignal or an ​electronicdevice goes off, it ​warnspeople that there is ​danger or that something is ​wrong: What do they do if the ​metaldetector goes off?
(Definition of go off from the Cambridge Academic Content Dictionary © Cambridge University Press)
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