amusement vs diversion

amusement and diversion both are nouns.

Word	Noun	Adjective	Verb	Adverb
amusement	Yes	No	No	No
diversion	Yes	No	No	No

As nouns, diversion is a hypernym of amusement; that is, diversion is a word with a broader meaning than amusement:

Other hypernyms of amusement include recreation.

amusement (noun)	diversion (noun)
an activity that is diverting and that holds the attention	an activity that diverts or amuses or stimulates
a feeling of delight at being entertained	a turning aside (of your course or attention or concern)
	an attack calculated to draw enemy defense away from the point of the principal attack