To make a loud, hollow, resonant sound.
Thunder boomed in the distance and lightning flashes lit up the horizon.
To exclaim with force, to shout, to thunder.
To extend, or push, with a boom or pole.
to boom out a sail
A low-pitched, resonant sound, such as of an explosion.
the boom of the surf
A rapid expansion or increase.
Used to suggest the sound of an explosion.
crash boom bang
Used to suggest something happening suddenly or unexpectedly; voilà.
A Belgian town and municipality in the southwest of the Flemish province of Antwerp.
Onomatopoeic, perhaps borrowed; compare German bummen, Dutch bommen (“to hum, buzz”). The sense "a period of economic growth" is generally taken to derive from the sense "a rapid expansion", although ...
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You should prepare for the coming boom in the tech industry.
A spar extending the foot of a sail; a spar rigged outboard from a ship's side to which boats are secured in harbour.
Tighten the outhaul and place the appropriate line in the cam cleat located on the boom about two feet back from the mast.
Add one cup of hot water, wait a minute, and boom — your cup of ramen is ready.
The sound of a bass drum beating.