automobile vs accelerator

automobile and accelerator both are nouns.

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

automobile (noun)	accelerator (noun)
a motor vehicle with four wheels; usually propelled by an internal combustion engine	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

automobile (verb)	accelerator (verb)
travel in an automobile