roller
//ˈroʊlər//
Noun
rollerSingular
rollersPlural
1
A cylinder that rotates about a central axis and is used in various machines and devices for moving, pressing, or smoothing things.
The printer uses a rubber roller to feed the paper.
2
A small cylinder on which hair is rolled to produce curls.
She put rollers in her hair before going to bed.
3
A long, heavy wave that seems to roll steadily toward the shore.
The surfers waited for the big rollers to come in.
4
A cylindrical tool used for applying paint evenly on surfaces.
I used a roller to paint the wall quickly and evenly.