killing vs death

killing and death both are nouns.

Word	Noun	Adjective	Verb	Adverb
killing	Yes	Yes	No	No
death	Yes	No	No	No

As nouns, death is a hyponym of killing; that is, death is a word with a more specific, narrower meaning than killing:

killing (noun)	death (noun)
the act of terminating a life	the act of killing
an event that causes someone to die	the event of dying or departure from life
a very large profit	the permanent end of all life functions in an organism or part of an organism
	the absence of life or state of being dead
	a final state
	the time when something ends
	the time at which life ends; continuing until dead

killing (adjective)	death (adjective)
very funny