Wave goes over fish: one runs on foot

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Roller skate \Roll"er skate\ a shoe with a set of wheels attached so that the wearer can glide over a flat surface. To move on such a device is reverred to as to skate or to rollerskate. To rollerskate is a form of recreation or sport. a metal frame of ...

WordNet Word definitions in WordNet
n. a shoe with pairs of rollers fixed to the sole

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ All we do is dance and roller skate .&.

Wiktionary Word definitions in Wiktionary
alt. A boot having small wheels or casters attached to its sole; used for roller skating n. A boot having small wheels or casters attached to its sole; used for roller skating vb. To skate using roller skates