danger vs endangerment

danger and endangerment both are nouns.

Word	Noun	Adjective	Verb	Adverb
danger	Yes	No	No	No
endangerment	Yes	No	No	No

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

danger: a cause of pain or injury or loss
endangerment: a source of danger; a possibility of incurring loss or misfortune

Other hyponyms of danger include hazard, jeopardy, peril, risk, powder keg, menace, threat.

danger (noun)	endangerment (noun)
a venture undertaken without regard to possible loss or injury	a source of danger; a possibility of incurring loss or misfortune
a dangerous place
the condition of being susceptible to harm or injury
a cause of pain or injury or loss