clash vs crash

clash and crash both are nouns.

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

As nouns, clash and crash are synonyms defined as:

Other synonyms of clash include clang, clangor, clangoring, clangour, clank.

As verbs, crash is a hyponym of clash; that is, crash is a word with a more specific, narrower meaning than clash:

Other hyponyms of clash include smash, shock, ram.

clash (noun)	crash (noun)
a minor short-term fight	the act of colliding with something
a loud resonant repeating noise	a serious accident (usually involving one or more vehicles)
a state of conflict between persons	a loud resonant repeating noise
a state of conflict between colors	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

clash (verb)	crash (verb)
disagree violently	sleep in a convenient place
crash together with violent impact	stop operating
be incompatible; be or come into conflict	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