death vs human death

death and human death both are nouns.

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

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

death (noun)	human death (noun)
the act of killing	a death resulting from an accident or a disaster
the event of dying or departure from life
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