Verb (used without object) : to roar at a joke. ,The automobile roared away.    From Dictionary.com. 

Verb (used with object) : to roar denials. ,to roar oneself hoarse.    From Dictionary.com. 

Noun : the roar of a lion. ,the roar of the surf; the roar of lively conversation from the crowded party. ,a roar of laughter; a roar of approval from the audience.    From Dictionary.com. 

There are a couple of wrinkles involved here, beyond even the public outroar that would result.    From Wordnik.com.  [THE COMING HURRICANE FITZGERALD...] Reference

English — would outroar the mightiest lion that ever woke the echoes of an African wilderness.    From Wordnik.com.  [Green Mansions] Reference

He would be called a racist and a bigot, and there would have been an outroar calling for his resignation.    From Wordnik.com.  [Clinton touts support from 'white Americans'] Reference

On the flipside Daniel Craig for Bond had such an immature outroar because too many people know him as well Daniel Craig pre-Bond.    From Wordnik.com.  [Filmstalker: Dougray Scott chases Hitman] Reference

Clearly Facebook is concerned with avoiding another privacy outroar, such as it experienced when it introduced Newsfeeds and RSS feeds.    From Wordnik.com.  [2007 September « Squash] Reference

The republicans will play their political games until the public goes into such an outroar that they will have no choice but to do the right thing.    From Wordnik.com.  [Wall Street reform odyssey begins in Senate] Reference

If Guthrie can't outwangle, out-connive, and outroar the combined governments of Earth, we may as well go back there and the North Americans among us embrace the Renewal.    From Wordnik.com.  [The Stars Are Also Fire]

A particularly atrocious George Will piece, abusive of sources and any valid claim to legitimate factual discussion, has raised an outroar in the blogosphere that has now moved to major environmental organizations calling on The Washington Post to correct Will's disinformation.    From Wordnik.com.  [A. Siegel: New York Times Stands in Solidarity with Washington Post] Reference

That caused an outroar from Tete Jaune Cache to Sicamous.    From Wordnik.com.  [Progressive Bloggers] Reference

I was expecting some kind of reaction or outroar from Venezuela.    From Wordnik.com. Reference

Demosthenes trying to outroar a stormy sea with his mouth full of pebbles.    From Wordnik.com.  [Letters from the Cape] Reference

If he could outroar his opponent, he always considered the victory as his.    From Wordnik.com.  [The Rules of the Game] Reference

There has been an outroar among its members - me included - by this unwarned changed.    From Wordnik.com.  [Network2.tv] Reference

Did Ziff Davis think they could just cancel the magazines with no patron outroar or complaints?.    From Wordnik.com.  [1UP RSS feed] Reference

Lord North in vain rumbled about his mustard-bowl, and endeavoured alone to outroar a whole party: him and Forrester.    From Wordnik.com.  [The Letters of Horace Walpole, Earl of Orford — Volume 3] Reference

With the recent outroar with the MyAnimeList switching to a new layout and breaking the Unofficial MyAnimeList API, what is there left for me?.    From Wordnik.com.  [Anime Nano!] Reference

Lord North in vain rumbled about his mustard-bowl, and endeavoured alone to outroar a whole party: him and Forrester, Charles Townshend took up, but less well than usual.    From Wordnik.com.  [Letters of Horace Walpole 01]

Bethesda and the Galilee of Mr. Barmby on Concert evenings: as it were, the towering wood-work of the cathedral organ in quake under emission of its multitudinous outroar.    From Wordnik.com.  [One of Our Conquerors — Complete] Reference

"There is no doubt in my mind if this article listed examples of Barak Obama's copnduct, or Reverend Wright's, and equated it with 'black privilege' an outroar would occur.".    From Wordnik.com.  [doggdot.us] Reference

The alligator, far from being a silent animal, as is generally supposed, makes a hideous noise at times, bellowing with so singular a cadence and loud a din, that he can even outroar the jaguars and mycetes.    From Wordnik.com.  [The Western World Picturesque Sketches of Nature and Natural History in North and South America] Reference

Nataly was aware of unusual intonations, treble-stressed, in the Bethesda and the Galilee of Mr. Barmby on Concert evenings: as it were, the towering wood-work of the cathedral organ in quake under emission of its multitudinous outroar.    From Wordnik.com.  [Complete Project Gutenberg Works of George Meredith] Reference

And he realized how close he’d come to getting hurt, how foolish a risk it was to attempt to outroar a cougar.    From Wordnik.com.  [The Welkening] Reference

Well, you can imagine the outroar that caused.    From Wordnik.com.  [Dear Liberty - A Dress A Day] Reference

Upon the hill of Basan, to outroar.    From Wordnik.com.  [Antony and Cleopatra] Reference

Each was trying to outroar the other.    From Wordnik.com.  [A Diversity of Creatures] Reference

Answering, as though to outroar the tides of time.    From Wordnik.com.  [Poems & Ballads (Second Series) Swinburne's Poems Volume III] Reference