Definition of "roar" []

To utter a loud, deep, prolonged sound, especially in distress, rage, or excitement. (verb-intransitive)
To laugh loudly or excitedly. (verb-intransitive)
To make or produce a loud noise or din: The engines roared. (verb-intransitive)
To be disorderly or rowdy. (verb-intransitive)
To breathe with a rasping sound. Used of a horse. (verb-intransitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "roar" in a sentence

"IV. vi.124 (414,8) They'll roar him in again] As they _hooted_ at his departure, they will _roar_ at his return; as he went out with scoffs, he will come back with lamentations."
"The roar is louder now — a narrow hallway with carpet below and blood beside."
"Everything but the roar is used with the gator in South Louisiana."

Words like "roar"

call cry emit express joy

express mirth laugh let loose let out

noise roared roaring roars

shout utter vociferation yell