usable vs serviceable

usable and serviceable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
usable	No	Yes	No	No
serviceable	No	Yes	No	No

usable (adjective)	serviceable (adjective)
convenient for use or disposal	ready for service or able to give long service
fit or ready for use or service	intended or able to serve a purpose without elaboration
capable of being put to use	capable of being put to good use