roller 3
noundomain: artefact
Princeton WordNet [ver.3.1]
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EnglishDefinition
a small wheel without spokes (as on a roller skate)
Hypernym
wheel 1
noun
a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
Part_meronym
roller skate 1
noun
a shoe with pairs of rollers fixed to the sole
EnglishDerivationally related form
roll 1
verb
move by turning over or rotating
Hyponym
caster 3
noun
a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable
Part_holonym
roller skate 1
noun
a shoe with pairs of rollers fixed to the sole
