1. To act or proceed in a riotous, turbulent, or disorderly way
2. To laugh unrestrainedly and heartily; SYN. howl.
3. To make a loud noise, as of wind, water, or vehicles; SYN. howl.

1. The deep cry of a wild animal (as a lion)
2. A loud deep cry (as of pain or anger)
3. A loud continuous confused sound
4. A boisterous outcry
5. The sound made by a lion.