Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Thesaurus

boom

noun

Synonyms and Antonyms of boom

  1. a loud explosive sound <the nerve-jangling boom of a car backfiring> Synonyms bang, blast, clap, crack, crash, pop, report, slam, smash, snap, thunderclap, thwack, whack, whomp, whumpRelated Words 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. 1 to become greater in size, extent, volume, amount, or number <requests for hybrid cars are booming> Synonyms accelerate, accumulate, appreciate, balloon, increase, build up, burgeon (also bourgeon), climb, enlarge, escalate, expand, gain, mount, multiply, mushroom, proliferate, rise, roll up, snowball, spread, swell, waxRelated Words jump, rocket, skyrocket, surge; heighten, intensify, redouble; blow up, bulk, distend, inflate, puff (up); crescendo, crest, peakAntonyms contract, decrease, diminish, dwindle, lessen, recede, wane

  2. 2 to make a long loud deep noise or cry <the cannons boomed throughout the night> Synonyms bellow, roar, growl, thunderRelated Words grumble, roll, rumble; bang, blare, blast, peal, scream, screech, shriek, squall; bawl, call, cry, holler, hoot, shout, whoop, yell; bell, caterwaul, howl, wail, yowlNear Antonyms grunt, mouth, mumble, murmur, mutter, whisper; mewl, pule, squeak, whimper




Learn More about boom


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).

WORD OF THE DAY

February 8, 2016

to clear from accusation or blame

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

kittly-benders pince-nez duvet spindrift
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ