Frank J. Wilstach, comp. A Dictionary of Similes. 1916.
Roar (Noun)
A single roar like the roar of a mortar-battery.
—Rudyard Kipling
Roar … like the sound of a beast in pain.
—Rudyard Kipling
The roar of battle rose,
Like the roar of a burning forest, when a strong north wind blows.
—Thomas Babington Macaulay
Roaring like thunder borne upon the breeze.
—John Ruskin
Roar as of an ocean foaming.
—Percy Bysshe Shelley
Roar,
Like the din of wintry breakers on a sounding wall of shore.
—Bayard Taylor