crash vs fall

crash and fall both are nouns.

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

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

Other hypernyms of crash include come down, descend, go down.

crash (noun)	fall (noun)
the act of colliding with something	a sudden drop from an upright position
a serious accident (usually involving one or more vehicles)	the act of surrendering (usually under agreed conditions)
a loud resonant repeating noise	a lapse into sin; a loss of innocence or of chastity
a sudden large decline of business or the prices of stocks (especially one that causes additional failures)	a sudden sharp decrease in some quantity
(computer science) an event that causes a computer system to become inoperative	a free and rapid descent by the force of gravity
	a sudden decline in strength or number or importance
	when a wrestler's shoulders are forced to the mat
	a movement downward
	a downward slope or bend
	the season when the leaves fall from the trees
	the time of day immediately following sunset

crash (verb)	fall (verb)
sleep in a convenient place	occur at a specified time or place
stop operating	decrease in size, extent, or range
undergo a sudden and severe downturn	pass suddenly and passively into a state of body or mind
undergo damage or destruction on impact	be born, used chiefly of lambs
break violently or noisily; smash	come out; issue
cause to crash	assume a disappointed or sad expression
hurl or thrust violently	begin vigorously
enter uninvited; informal	come as if by falling
move with, or as if with, a crashing noise	be cast down
fall or come down violently	go as if by falling
move violently as through a barrier	fall or flow in a certain way
make a sudden loud sound	move downward and lower, but not necessarily all the way
occupy, usually uninvited	move in a specified direction
	descend in free fall under the influence of gravity
	slope downward
	drop oneself to a lower or less erect position
	lose an upright position suddenly
	to be given by assignment or distribution
	be captured
	fall to somebody by assignment or lot; passed
	come into the possession of
	to be given by right or inheritance
	be inherited by
	lose office or power
	yield to temptation or sin
	suffer defeat, failure, or ruin
	lose one's chastity
	die, as in battle or in a hunt
	be due
	come under, be classified or included
	touch or seem as if touching visually or audibly
	fall from clouds