death vs fatality

death and fatality both are nouns.

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

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

death (noun)	fatality (noun)
the act of killing	the quality of being able to cause death or fatal disasters
the event of dying or departure from life	a death resulting from an accident or a disaster
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