1 C1 neutral
To produce or emit a loud, deep booming sound, often echoing off surfaces.
"The signal cannon boomed off the stone battlements of the old fort."
inseparable
boom off
C1 neutral inseparable intransitive
To resound or echo with a deep, loud booming noise.
In plain English
To make a very loud, deep banging or echoing sound.
What does "boom off" mean?
One main meaning — here's how to use it.
Literal vs figurative
Words literally mean
A boom (deep loud sound) going off — both words reinforce the idea of a sudden, powerful sound.
Actually means
To make a very loud, deep banging or echoing sound.
Usage tip
Relatively rare and mostly found in literary or descriptive writing to convey the resonating effect of a very loud sound, such as a cannon, thunder, or explosion. The particle 'off' suggests the sound launching or reverberating away from its source.
Words that pair with "boom off"
Natural word combinations native speakers use most often.
cannon thunder explosion guns drums walls
How to conjugate "boom off"
The five tense forms you'll use most often.
Base
boom off
I/you/we/they
3rd person
booms off
he/she/it
Past simple
boomed off
yesterday
Past participle
boomed off
have + pp
-ing form
booming off
continuous
Hear "boom off" in the wild
Listen to native speakers using "boom off" in real YouTube videos — click a clip to watch it on Looplines.
Keep exploring
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