Synonyms of boom in English:

boom


See definition of boom

noun

1‘she heard the boom of the waves on the rocks below’

SYNONYMS
reverberation, resonance, resounding
thunder, thundering, roaring, echoing, re-echoing, blasting, crashing, drumming, thrumming, pounding
roar, rumble, bellow, bang, blast, blare, loud noise

2‘retailers are cashing in on an unprecedented boom’

SYNONYMS
upturn, upsurge, upswing, increase, advance, growth spurt, boost
expansion, escalation, augmentation, improvement, progress, development, success
ANTONYMS

recession, slump


verb

1‘thunder boomed in the sky overhead’

SYNONYMS
reverberate, resound, resonate
rumble, thunder, ring out, sound loudly, blare, echo, fill the air
crack, crash, roll, clap, explode, bang, blast

2‘a voice boomed at her from a small doorway’

SYNONYMS
bellow, roar, thunder, shout, bawl, yell, bark
North American informal holler
rare vociferate
ANTONYMS

whisper

3‘the property market continued to boom’

SYNONYMS
flourish, burgeon, thrive, prosper, progress, do well, succeed, be successful, improve, pick up, come on
grow rapidly, develop, expand, balloon, increase, swell, intensify, mushroom, snowball, rocket
ANTONYMS

decline, slump