Synonym: boom, clamor, thunder. Similar words: uproar, roaring, uproarious, soar, board, coarse, aboard, on board. Meaning: [rɔr /rɔː] 
n. 1. a deep prolonged loud noise 2. a very loud utterance (like the sound of an animal) 3. the sound made by a lion. v. 1. make a loud noise, as of wind, water, or vehicles 2. utter words loudly and forcefully 3. emit long loud cries 4. act or proceed in a riotous, turbulent, or disorderly way 5. make a loud noise, as of animal 6. laugh unrestrainedly and heartily.
n. 1. a deep prolonged loud noise 2. a very loud utterance (like the sound of an animal) 3. the sound made by a lion. v. 1. make a loud noise, as of wind, water, or vehicles 2. utter words loudly and forcefully 3. emit long loud cries 4. act or proceed in a riotous, turbulent, or disorderly way 5. make a loud noise, as of animal 6. laugh unrestrainedly and heartily. 
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121. The homeward-bound ploughman roars his tractor across the flyover linking two fields bisected by the roar of the motorway beneath.
122. She has learned to put up with the constant roar of trucks and cars whizzing by.
123. And on the outskirts of town, with the roar of the sea, we passed by the Glengall House.
124. The rattle of rifles and the roar of artillery are simply awful.
125. The roar of the crackling fire drew near and doom seemed inevitable.
126. With a roar, he turned on the harridans and flew at them, and the harridans were beset with physical chastisement.
127. Before she had made up her mind she heard the roar of the jets.
128. When the engine kicked in, there was a sweet roar like the opening barrage of a great battle.
129. Some already see flashes of lightning just over the horizon and hear the roar of thunder in the distance.
130. As the floor levelled off the lights flickered and came up, the engine noise settling down to a steady background roar.
131. There was no sound other than the distant roar of the ocean.
132. In the roar of laughter it provoked, he felt himself falling swiftly towards the ground.
133. At times 25,000-plus onlookers were struck dumb by tension and anticipation, a hiccup resounding like a roar.
134. The little square was relatively sheltered, and in the hall the gale was no more than a distant, muffled roar.
135. As if to prove this very fact, the beast loosed its ear-shattering boom of a roar once more.
136. They stopped at the Zebra Crossing and Pete watched the big lorries and buses and cars roar past.
137. He heard the roar of the motorcycle being started up and then fading until it was silent.
138. Conversation was limited by the roar of the engine and the thrash of the bow waves.
139. Rachaela walked along the path, in among the pine trees with the sullen roar of the sea to her right.
140. The roar of his shot coincided with the answering crash of gunfire from his enemies' weapons.
141. There was a beating in his ears like the roar of a mighty crowd.
142. The roar from Delhi is echoing across Asia.
143. the throaty roar of the engines.
144. Local residents saw it plunge towards Earth with a deafening roar.
145. She could hear the roar of the truck motors outside on the mall.
146. The crowd mingled defiance and anguish in an animal roar.
147. The roar of the crowd stilled to an expectant murmur.
148. to roar with laughter.
149. Now and then they heard the roar of a heavy truck.
150. Then she heard a roar of laughter from Chao Po - tao .