Real Dictionary

skate
countable noun: Skates are ice-skates.
countable noun: Skates are roller-skates.
verb: If you skate, you move about wearing ice-skates or roller-skates.

skate in American English 1
a bladelike metal runner mounted in a frame having clamps and straps for fastening it to the sole of a shoe and used for gliding on ice
to move along or glide on or as on skates
noun

skate in American English 2
any ray fish (esp. order Rajiformes)
noun: any of several rays of the genus Raja, usually having a pointed snout, as R. binoculata ( big skate) inhabiting waters along the Pacific coast of the U.S., growing to a length of 8 ft. (2.4 m)

skate in American English 3
a broken-down horse; nag
noun: a person; fellow

skate in British English 1
noun

skate in British English 2
noun: any large ray of the family Rajidae, of temperate and tropical seas, having flat pectoral fins continuous with the head, two dorsal fins, a short spineless tail, and a long snout

skate in British English 3
noun: a person; fellow