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Definitions

boom

[boom] / bum /
NOUN
loud sound; crash
Synonyms
STRONGEST
explosion
STRONG
bang barrage blare blast burst cannonade clap crack drumfire reverberation roar rumble slam smash thunder wham
NOUN
prosperity
Synonyms
STRONGEST
advance boost development expansion gain growth improvement increase inflation jump rush spurt upsurge upturn
STRONG
push
WEAK
prosperousness upswing
Antonyms
STRONGEST
decline decrease diminishment failure lessening loss shrinkage stagnation
WEAK
collapse
VERB
crash; make loud sound
Synonyms
STRONGEST
explode resound reverberate roar thunder
STRONG
bang blast burst clap crack drum roll rumble slam smash sound wham
Antonyms
WEAK
be silent
VERB
prosper
Synonyms
STRONGEST
develop expand flourish grow intensify strengthen swell thrive
STRONG
appreciate bloom enhance flower gain increase spurt succeed
WEAK
rise in value
Antonyms
STRONGEST
compress contract decline decrease fail languish lessen lower shrink stunt weaken
STRONG
lose shrivel
WEAK
collapse falter

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But the AI boom has made their old advice of picking a safe major and pursuing a stable career feel a lot less certain.

From The Wall Street Journal • Apr. 4, 2026

Semiconductors aren’t the only way to play the LEO satellite boom.

From MarketWatch • Apr. 3, 2026

How does all that square with the boom in new jobs?

From Slate • Apr. 3, 2026

Longtime Hartford residents are staring wide-eyed and open-mouthed at the sudden housing boom.

From The Wall Street Journal • Apr. 3, 2026

“A rumble, a hiss—some say a boom and a swish—and the wave of molasses swept out,” the newspaper proclaimed.

From "1919 The Year That Changed America" by Martin W. Sandler

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.