go off

phrasal verb·3 senses·particle off

Usefulness

Meanings

1

Stop working or be cut

Power Stopuncommon

Why “off”? An active connection, session, machine, light, or device stops.

The lights went off in the storm.
The lights stopped working because of the storm.
The fridge went off during the outage.
The fridge stopped working during the outage.
2

Start making a loud warning sound

Why “off”? Words, feelings, impressions, light, heat, or smells leave a source and reach others.

Maya's alarm went off at six on a weekday morning.
Maya's alarm started making its warning sound at six.
The smoke alarm went off while we were cooking.
The smoke alarm started making a loud warning sound while we were cooking.
3

Become unsafe or unpleasant to eat or drink

Stoppingbritish English

In American English, go bad is more usual.

Why “off”? Something is delayed, interrupted, reduced, or brought to an end.

The milk has gone off, so do not drink it.
The milk has become unsafe to drink.
Fresh fish goes off quickly in hot weather.
Fresh fish becomes unsafe to eat quickly in hot weather.

Don't confuse with

go offgo on

Go off means stop working or be cut. Go on means continue happening or doing something.

Test yourself

The lights went off in the storm. What does it mean?

Nearby in the meaning map

Sink In connects verbs by particle pattern, contrast pairs, and shared base verbs.

Sink In app icon

Sink In — iOS & Android

Practice “go off” in Sink In

Drill “go off” and 1,300+ other phrasal verbs with spaced repetition, organised by the particle patterns that connect them.

  • Learn the pattern behind dozens of verbs at once — not one-off translations.
  • Spaced repetition (SM-2) brings each meaning back right before you forget.
  • Four practice modes train recall and discrimination, not just recognition.
1,300+ phrasal verbs26 particle patternsBuilt for B1–C2
Sink In daily spaced-repetition practice session