causation vs coercion

causation and coercion both are nouns.

Word	Noun	Adjective	Verb	Adverb
causation	Yes	No	No	No
coercion	Yes	No	No	No

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

Other hyponyms of causation include sending, induction, initiation, trigger, compulsion, influence, inducement, inducing.

causation (noun)	coercion (noun)
the act of causing something to happen	using force to cause something to occur
	the act of compelling by force of authority