Definitions

1. interjection

an expression of excitement, triumph, or celebration, often used in sports or other competitions.

“The crowd erupted in a loud ‘Ro!’ as the home team scored the winning goal.”

2. noun

the sound of triumph or excitement, especially in sports.

“The roar of the crowd could be heard from miles away.”

3. verb

to make a loud, triumphant noise, especially in sports.

“The fans roared when their team scored the winning point.”