\Roar\, v. i. [imp. & p. p. {Roared}; p. pr. & vvb. n.
{Roaring}.] [OE. roren, raren, AS. r[=a]rian; akin to G.
r["o]hten, OHG. r?r?n. [root]112.]
1. To cry with a full, loud, continued sound. Specifically:
   (a) To bellow, or utter a deep, loud cry, as a lion or
       other beast.
             Roaring bulls he would him make to tame.
                                               --Spenser.
   (b) To cry loudly, as in pain, distress, or anger.
             Sole on the barren sands, the suffering chief
             Roared out for anguish, and indulged his grief.
                                               --Dryden.
             He scorned to roar under the impressions of a
             finite anger.                     --South.
2. To make a loud, confused sound, as winds, waves, passing
   vehicles, a crowd of persons when shouting together, or
   the like.
         The brazen throat of war had ceased to roar.
                                               --Milton.
         How oft I crossed where carts and coaches roar.
                                               --Gay.
3. To be boisterous; to be disorderly.
         It was a mad, roaring time, full of extravagance.
                                               --Bp. Burnet.
4. To laugh out loudly and continuously; as, the hearers
   roared at his jokes.
5. To make a loud noise in breathing, as horses having a
   certain disease. See {Roaring}, 2.
{Roaring boy}, a roaring, noisy fellow; -- name given, at the
   latter end Queen Elizabeth's reign, to the riotous fellows
   who raised disturbances in the street. ``Two roaring boys
   of Rome, that made all split.'' --Beau. & Fl.
{Roaring forties} (Naut.), a sailor's name for the stormy
   tract of ocean between 40[deg] and 50[deg] north latitude.

\Roar\, v. t.
To cry aloud; to proclaim loudly.
      This last action will roar thy infamy.   --Ford.

\Roar\, n.
The sound of roaring. Specifically:
(a) The deep, loud cry of a wild beast; as, the roar of a
    lion.
(b) The cry of one in pain, distress, anger, or the like.
(c) A loud, continuous, and confused sound; as, the roar of a
    cannon, of the wind, or the waves; the roar of ocean.
          Arm! arm! it is, it is the cannon's opening roar!
                                               --Byron.
(d) A boisterous outcry or shouting, as in mirth.
          Pit, boxes, and galleries were in a constant roar
          of laughter.                         --Macaulay.