amusement vs entertainment

amusement and entertainment both are nouns.

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

As nouns, amusement and entertainment are synonyms defined as:

amusement and entertainment: an activity that is diverting and that holds the attention

amusement (noun)	entertainment (noun)
an activity that is diverting and that holds the attention	an activity that is diverting and that holds the attention
a feeling of delight at being entertained