A ruffian is a tough or violent person who causes trouble or is mean to others.
The word ruffian has a bad feeling. It makes people think of fighting, danger, and being mean.
Examples:
The ruffian was mean to the other kids.
I don't want to play with that ruffian.
The ruffian caused a lot of trouble at school.
The ruffian tried to take my lunch money!
The ruffian was so mean, he scared everyone away.
The ruffian was big and mean, but I wasn't scared.