1. making a very loud, deep sound
2. very successful or profitable
Usage: informal
3. moving very fast

1. a loud, deep sound

Examples

• The roaring waterfall could be heard from miles away.
• The roaring fire warmed the entire cabin.
• The 1920s were known as the Roaring Twenties.
• Business was roaring after the new product launch.
• The roaring wind made it difficult to sleep.
• We heard the roaring of the ocean waves.
• The roaring crowd cheered for their team.