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1. The loud deep cry of a wild animal, especially a lion or other wild cat.
2. A loud, deep, prolonged sound or cry, as of a person in distress or rage.
3. A loud prolonged noise, such as that produced by waves.
4. A loud burst of laughter.
v. roared, roar·ing, roars
1. To produce or utter a roar.
2. To laugh loudly or excitedly.
3. To make or produce a loud noise or din: The engines roared.
4. To move while making a loud noise: The truck roared down the road.
5. To breathe with a rasping sound. Used of a horse.
1. To utter or express loudly. See Synonyms at yell.
2. To put, bring, or force into a specified state by roaring: The crowd roared itself hoarse.
Phrasal Verb:
roar back
To have great success after a period of lackluster performance; make a dramatic recovery: lost the first set but roared back to win the match.

[Middle English roren, to roar, from Old English rārian.]

roar′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.roarer - someone who communicates vocally in a very loud voiceroarer - someone who communicates vocally in a very loud voice
communicator - a person who communicates with others
crier - a peddler who shouts to advertise the goods he sells
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
He had never before been so much struck with the fact that this unfortunate bay was a roarer to a degree which required the roundest word for perdition to give you any idea of it.
I never heard but one worse roarer in my life, and that was a roan: it belonged to Pegwell, the corn-factor; he used to drive him in his gig seven years ago, and he wanted me to take him, but I said,
the horse was a penny trumpet to that roarer of yours."
Whilst staying in the town I heard an account from several of the inhabitants, of a hill in the neighbourhood which they called "El Bramador," -- the roarer or bellower.
All the roarers and lashers served to help him to magnify the dangers and horrors of the engagement that he might try to prove to himself that the thing with which men could charge him was in truth a symmetrical act.
"True," muttered Hutchinson to himself; "what care these roarers for the name of king?
Is it no harm to be blinded and choked up, and have the king's highway stopped with a set of screamers and roarers whose throats must be made of--of--'
Northern's complaint is cut short by the 'Turnbull' roarer Dan Knockem, a resourceful lover of the jargon of horse-dealers: 'How now!
The four branches are called Raja (for being majestic and regal in its plunge), Rani (because of the grace), Rocket (because it plunged down in a straight line) and Roarer (for being noisy).
This paper examines a common type in early modern city comedies: the "roarer," a boisterous young man given to swearing, gambling, and quarreling; Kastrill, in Jonson's The Alchemist (1610) and Cutting in his Bartholomew Fair (1614) are classic examples.
notes that the word "Keela" is similar to "kileha," a Choctaw word meaning "a roarer, a growler" (59).