speed vs speeder

speed and speeder both are nouns.

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

speed (noun)	speeder (noun)
changing location rapidly	a driver who exceeds the safe speed limit
a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression
a rate (usually rapid) at which something happens
the ratio of the focal length to the diameter of a (camera) lens system
distance travelled per unit time

speed (verb)	speeder (verb)
move faster
cause to move faster
move very fast
travel at an excessive or illegal velocity
move hurridly