- to utter a loud, deep cry or howl, as in excitement, distress, or anger.
- to laugh loudly or boisterously: to roar at a joke.
- to make a loud sound or din, as thunder, cannon, waves, or wind.
- to function or move with a loud, deep sound, as a vehicle: The automobile roared away.
- to make a loud noise in breathing, as a horse.
- to utter or express in a roar: to roar denials.
- to bring, put, make, etc., by roaring: to roar oneself hoarse.
- a loud, deep cry or howl, as of an animal or a person: the roar of a lion.
- a loud, confused, constant noise or sound; din; clamor: the roar of the surf; the roar of lively conversation from the crowded party.
- a loud outburst: a roar of laughter; a roar of approval from the audience.
- (of lions and other animals) to utter characteristic loud growling cries
- (of people) to utter (something) with a loud deep cry, as in anger or triumph
- to laugh in a loud hearty unrestrained manner
- (of horses) to breathe with laboured rasping sounds
- (of the wind, waves, etc) to blow or break loudly and violently, as during a storm
- (of a fire) to burn fiercely with a roaring sound
- (of a machine, gun, etc) to operate or move with a loud harsh noise
- to bring (oneself) into a certain condition by roaring
- a loud deep cry, uttered by a person or crowd, esp in anger or triumph
- a prolonged loud cry of certain animals, esp lions
- any similar noise made by a fire, the wind, waves, artillery, an engine, etc
- a loud unrestrained burst of laughter
