accelerator vs airplane

accelerator and airplane both are nouns.

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

accelerator (noun)	airplane (noun)
a valve that regulates the supply of fuel to the engine	an aircraft that has a fixed wing and is powered by propellers or jets
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