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1. A deep prolonged loud noise
   - boom, roar, thunder
    
2. A very loud utterance (like the sound of an animal)
   - bellow, bellowing, holla [archaic], holler [informal], hollering [informal], hollo [non-standard], holloa [rare], roar, yowl

1. Very lively and profitable
   "doing a roaring trade";
   - booming, flourishing, palmy, prospering, prosperous, thriving

1. Extremely
   "roaring drunk"

1. Make a loud noise, as of wind, water, or vehicles
   "The water roared down the chute";
   - howl
    
2. Utter words loudly and forcefully
   "'Get out of here,' he roared";
   - thunder
    
3. Emit long loud cries
   "roar with sorrow";
   - howl, ululate, wail, yawl, yaup
    
4. Act or proceed in a riotous, turbulent, or disorderly way
   "desperadoes from the hills regularly roared in to take over the town"
    
5. Make a loud noise, as of an animal
   "The bull roared";
   - bellow
    
6. Laugh unrestrainedly and heartily
   - howl

Derived forms: roarings

See also: successful

Type of: call, continue, cry, emit, express joy, express mirth, go forward, holler [informal], hollo [non-standard], laugh, let loose, let out, make noise, move ahead, noise, outcry, proceed, resound, scream, shout, shout out, squall, utter, vociferation, yell

Encyclopedia: Roaring