go off

verb

went off; gone off; going off; goes off

intransitive verb

1

: explode

2

: to burst forth or break out suddenly or noisily

3

: to go forth, out, or away : leave

4

: to undergo decline or deterioration

5

: to follow the expected or desired course : proceed

the party went off well

6

: to make a characteristic noise : sound

could hear the alarm going off

Phrases

go off the deep end

1

: to enter recklessly on a course

2

: to become very much excited

Synonyms

• blow
• blow up
• burst
• crump
• detonate
• explode
• pop

Examples of go off in a Sentence

specialists were able to deactivate the bomb before it went off

the wedding went off without so much as a single glitch

Recent Examples on the Web

But a bomb goes off when Grove tries to enter his car. —Eliana Dockterman, TIME, 29 Oct. 2024

Shaun DuBois, a spokesperson for Phoenix fire, said firefighters were dispatched to the six-story building at around 9:30 a.m. after a fire alarm went off on the building's third floor. —Perry Vandell, The Arizona Republic, 27 Oct. 2024

The flight from San Francisco to New York in November 2023 went off without a hitch. —Fernando Cervantes Jr., USA TODAY, 25 Oct. 2024

Thank God everything went off without any problems. —Jaime Jarrín, Los Angeles Times, 24 Oct. 2024

Word History

First Known Use

1579, in the meaning defined at sense 1

Kids Definition

go off

verb

1

: explode sense 2b

2

: to burst forth or break out suddenly or noisily

3

: to take place : proceed

the dance went off as planned