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Noun roller has 7 senses
- roller - a grounder that rolls along the infield
--1 is a kind of grounder, ground ball, groundball, hopper
- roller, roll, rolling wave - a long heavy sea wave as it advances towards the shore
--2 is a kind of wave, moving ridge
- roller - a small wheel without spokes (as on a roller skate)
--3 is a kind of wheel
--3 is a part of roller skate
--3 has particulars: caster, castor
- roller - a cylinder that revolves
--4 is a kind of cylinder
--4 is a part of roller blind
--4 has particulars: garden roller; paint roller; platen; sprocket; trundle
- curler, hair curler, roller, crimper - a 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"
--5 is a kind of mechanical device
- roller - Old World bird that tumbles or rolls in flight; related to kingfishers
--6 is a kind of coraciiform bird
--6 is a member of Coraciidae, family Coraciidae
--6 has particulars: European roller, Coracias garrulus; ground roller
- roller, tumbler, tumbler pigeon - pigeon that executes backward somersaults in flight or on the ground
--7 is a kind of domestic pigeon
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