ejector vs gun

ejector and gun both are nouns.

Word	Noun	Adjective	Verb	Adverb
ejector	Yes	No	No	No
gun	Yes	No	Yes	No

ejector (noun)	gun (noun)
a mechanism in a firearm that ejects the empty shell case after firing	the discharge of a firearm as signal or as a salute in military ceremonies
An injector, ejector, steam ejector, steam injector, eductor-jet pump or thermocompressor is a type of pump.	a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
a person who ousts or supplants someone else	large but transportable armament
	a hand-operated pump that resembles a pistol; forces grease into parts of a machine
	a pedal that controls the throttle valve
	a professional killer who uses a gun
	a person who shoots a gun (as regards their ability)

ejector (verb)	gun (verb)
	shoot with a gun