amusing vs funny

amusing is not a noun while funny is a noun.

Word	Noun	Adjective	Verb	Adverb
amusing	No	Yes	No	No
funny	Yes	Yes	No	No

As adjectives, amusing and funny are synonyms defined as:

Other synonyms of amusing include comic, comical, laughable, mirthful, risible.

amusing (noun)	funny (noun)
	an account of an amusing incident (usually with a punch line)

amusing (adjective)	funny (adjective)
arousing or provoking laughter	arousing or provoking laughter
providing enjoyment; pleasantly entertaining	experiencing odd bodily sensations
	not as expected
	beyond or deviating from the usual or expected