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. 
Random good picture Not show
1. The lion gave a loud roar.
2. The lion let out a great roar.
3. The roar of the train reverberated in the tunnel.
4. A sudden roar came from the expectant crowd.
5. A roar of approval resounded through the Ukrainian parliament.
6. Ten thousand people roar a loud sigh as you are.
7. There was a roar and a cloud of smoke as the car pulled away from the traffic lights.
8. We were almost deafened by the crash/roar of the surf.
9. The roar of city traffic is a steady assault on one's nerves.
10. You needn't roar at me.
11. It made them roar with laughter.
12. A great roar of applause broke out.
13. His speech was greeted by a roar of applause.
14. I could barely hear above the roar of traffic.
15. The machines roar incessantly during the hours of daylight.
16. The murmur swelled into a roar.
17. There was a roar of approval from the crowd.
18. They heard a deep, distant roar.
19. The car sped off with an almighty roar.
20. He let out a roar of laughter .
21. There was a roar of approval.
22. The lion let out a loud roar.
23. We heard a lion roar.
24. A loud roar rose from the crowd.
25. His jokes made us all roar.
25. Sentencedict.com is a sentence dictionary, on which you can find excellent sentences for a large number of words.
26. There was a crash and a roar from the kitchen.
27. His voice was barely audible above the roar of the crowd.
28. Gradually the roar died out and the night became quiet.
29. A mighty roar went up from the crowd as the home team scored.
30. Now the cheers and applause mingled in a single sustained roar.