accelerator vs accelerate

accelerator is a noun but accelerate is not a noun.

Word	Noun	Adjective	Verb	Adverb
accelerator	Yes	No	No	No
accelerate	No	No	Yes	No

accelerator (noun)	accelerate (noun)
a valve that regulates the supply of fuel to the engine
a scientific instrument that increases the kinetic energy of charged particles
a pedal that controls the throttle valve
(chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

accelerator (verb)	accelerate (verb)
	move faster
	cause to move faster