Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Thesaurus

boom

noun

Synonyms and Antonyms of boom

a loud explosive sound

  • the nerve-jangling boom of a car backfiring
Synonyms of boom

bang, blast, clap, crack, crash, pop, report, slam, smash, snap, thunderclap, thwack, whack, whomp, whump
Words Related to boom

thunk, wham

clang, clangor, clank, clash

knock, rap, tap

blare, clamor, howl, hubbub, hue and cry, hullabaloo, outcry, roar, tumult, uproar

boom

verb

Synonyms and Antonyms of boom

1 to become greater in size, extent, volume, amount, or number

  • with the strong economy, business is booming
Synonyms of boom

accelerate, accumulate, appreciate, balloon, build up, burgeon (also bourgeon), climb, enlarge, escalate, expand, gain, increase, mount, multiply, mushroom, proliferate, rise, roll up, snowball, spread, swell, wax
Words Related to boom

jump, rocket, skyrocket, surge

heighten, intensify, redouble

blow up, bulk, distend, inflate, puff (up)

crescendo, crest, peak
Antonyms of boom

contract, decrease, diminish, dwindle, lessen, recede, wane

2 to make a long loud deep noise or cry

  • the cannons boomed throughout the night
Synonyms of boom

bellow, growl, roar, thunder
Words Related to boom

grumble, roll, rumble

bang, blare, blast, peal, scream, screech, shriek, squall

bawl, call, cry, holler, hoot, shout, whoop, yell

bell, caterwaul, howl, wail, yowl
Near Antonyms of boom

grunt, mouth, mumble, murmur, mutter, whisper

mewl, pule, squeak, whimper

Learn More about boom

  1. See words that rhyme with boom Dictionary: Definition of boom Spanish Central: Translation of boom Nglish: Translation of boom for Spanish speakers Britannica English: Translation of boom for Arabic speakers

Seen and Heard

What made you want to look up boom? Please tell us where you read or heard it (including the quote, if possible).

show comments hide comments

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

nidus

a nest or breeding place

Get Word of the Day daily email!

TRENDING NOW

  1. nebulous Lip reading, Brexit, and semantic uncertainty

  2. synergy Mueller files Cohen details.

  3. slumgullion From the broadcast of 'It Happened on Fifth Avenue'

SEE ALL

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games