crash vs clash

crash and clash both are nouns.

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

As nouns, crash and clash are synonyms defined as:

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

As verbs, clash is a hypernym of crash; that is, clash is a word with a broader meaning than crash:

Other hypernyms of crash include collide.

crash (noun)	clash (noun)
the act of colliding with something	a minor short-term fight
a serious accident (usually involving one or more vehicles)	a loud resonant repeating noise
a loud resonant repeating noise	a state of conflict between persons
a sudden large decline of business or the prices of stocks (especially one that causes additional failures)	a state of conflict between colors
(computer science) an event that causes a computer system to become inoperative

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