Nouns

(n)rollera grounder that rolls along the infield
(n)roller, roll, rolling wavea long heavy sea wave as it advances towards the shore
(n)rollera small wheel without spokes (as on a roller skate)
(n)rollera cylinder that revolves
(n)curler, hair curler, roller, crimpera mechanical device consisting of a cylindrical tube around which the hair is wound to curl it“a woman with her head full of curlers is not a pretty sight”
(n)rollerOld World bird that tumbles or rolls in flight; related to kingfishers
(n)roller, tumbler, tumbler pigeonpigeon that executes backward somersaults in flight or on the ground