Tra từ roar - Từ điển Oxford Advanced Learner 8th

roar [roar roars roared roaring] verb, noun BrE [rɔː(r)] NAmE [rɔːr]
verb
1. intransitive to make a very loud, deep sound
•We heard a lion roar.
•The gun roared deafeningly.
•The engine roared to life (= started noisily).
•The wind was roaring in my ears.
2. intransitive, transitive to shout sth very loudly
•The crowd roared.
•~ sth (out) The fans roared (out) their approval.
•He roared out James's name.
•+ speech ‘Stand back,’ he roared.
3. intransitive to laugh very loudly
•He looked so funny, we all roared.
•~ with laughter It made them roar with laughter.
4. intransitive + adv./prep. (of a vehicle or its rider/driver)to move very fast, making a lot of noise
•She put her foot down and the car roared away.
•A group of young men on motorcycles roared past.
5. intransitive (of a fire)to burn brightly with a lot of flames, heat and noise
•A log fire was roaring in the hearth.
see roar, romp, sweep, etc. to victory at ↑victory _n.
Verb forms:

Word Origin:
Old English rārian (verb), imitative of a deep prolonged cry, of West Germanic origin; related to German röhren. The noun dates from late Middle English.

Example Bank:
•Fans roared their approval.
•The crowd roared with excitement.
•The engine roared to life.
•The man roared in pain and fury as he tried to get to his feet.

noun
1. a loud deep sound made by an animal, especially a ↑lion, or by sb's voice
•His speech was greeted by a roar of applause.
•roars of laughter
2. a loud continuous noise made by the wind or sea, or by a machine
•I could barely hear above the roar of traffic.
•the roar of the Atlantic

Word Origin:
Old English rārian (verb), imitative of a deep prolonged cry, of West Germanic origin; related to German röhren. The noun dates from late Middle English.

Example Bank:
•A mighty roar went up from the crowd as the home team scored.
•She couldn't make herself heard over the roar of the engines.
•The car sped off with an almighty roar.
•The lion let out a great roar.
•The low rumble had become a roar.
•The shouting grew into an angry roar.
•The sound of a distant roar echoed over the plains.
•There was a crash and a roar from the kitchen.
•a roar of applause/laughter
•the distant roar of the sea
•the throaty roar of the engine
•I could barely hear above/over the roar of the aircraft's engines.
•The crowd burst into roars of laughter.