Billy was considered a hero by the many people who had seen his courageous crime-fighting in action.
A hyperbole is an Exaggeration, A metonymy is a substitution of a name or position for the actual thing meant in the first place.
3 pounds for 6 dollars
1 pound for 2 dollars
10 pounds for 20 dollars
Action is the same as verb so it’s verb your welcome have a nice day