crash vs crasher

crash and crasher both are nouns.

Word	Noun	Adjective	Verb	Adverb
crash	Yes	No	Yes	No
crasher	Yes	No	No	No

crash (noun)	crasher (noun)
the act of colliding with something	someone who gets in (to a party) without an invitation or without paying
a serious accident (usually involving one or more vehicles)
a loud resonant repeating noise
a sudden large decline of business or the prices of stocks (especially one that causes additional failures)
(computer science) an event that causes a computer system to become inoperative

crash (verb)	crasher (verb)
sleep in a convenient place
stop operating
undergo a sudden and severe downturn
undergo damage or destruction on impact
break violently or noisily; smash
cause to crash
hurl or thrust violently
enter uninvited; informal
move with, or as if with, a crashing noise
fall or come down violently
move violently as through a barrier
make a sudden loud sound
occupy, usually uninvited