skate vs speed skate

skate and speed skate both are nouns.

Word	Noun	Adjective	Verb	Adverb
skate	Yes	No	Yes	No
speed skate	Yes	No	Yes	No

skate (noun)	speed skate (noun)
large edible rays having a long snout and thick tail with pectoral fins continuous with the head; swim by undulating the edges of the pectoral fins	an ice skate with a long blade; worn for racing
sports equipment that is worn on the feet to enable the wearer to glide along and to be propelled by the alternate actions of the legs

skate (verb)	speed skate (verb)
move along on skates	race on skates