compulsion vs coercion

compulsion and coercion both are nouns.

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

As nouns, compulsion and coercion are synonyms defined as:

compulsion (noun)	coercion (noun)
using force to cause something to occur	using force to cause something to occur
an irrational motive for performing trivial or repetitive actions, even against your will	the act of compelling by force of authority
an urge to do or say something that might be better left undone or unsaid