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/ˈɹoʊlɚˌbleɪd/ · noun
A roller skate with all wheels aligned in a single row along the sole, resembling an ice skate..
Use roller blade when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Roller blade means A roller skate with all wheels aligned in a single row along the sole, resembling an ice skate..
Common synonyms include in-line skate, inline skate.
The opposite depends on the specific sense.
Use roller blade where its definition matches the intended context.
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