A rolling stone gathers no moss" is a saying.
roll Three men jumped out, rolled an old mower down the ramp.
roll According to one story, the money was round so that it could roll from place to place.
roll I want a roll of color film for prints.
roll This school has several foreigners on the roll.
roll Can we roller-skate in this park?
roll Well, let's get the ball rolling.
roll James Bond was always depicted as a high roller in his movies.
roll The tape is rolling.
roll Trucks came and dumped big stones on the road, then some trucks with little stones, then some trucks with tar and sand, and finally a steam roller came and rolled it all smooth, and the road was done.