Very lively or successful; thriving: a roaring trade. (adjective)
Used as an intensive: roaring drunk. (adjective)
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 "roaring" in a sentence
"Mr. Turnbull was soon driving what he called a roaring trade."
"When the hockey game went into overtime, I ended up going back to the penthouse and watching the rest of the game with my teammates, we had the windows open so you could hear the crowd roaring from the BC Place."
"Hear "Fox News roaring from the right, MSNBC shouting back from the left, and CNN flailing in the middle"."