useable vs operable

useable and operable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
useable	No	Yes	No	No
operable	No	Yes	No	No

As adjectives, useable and operable are synonyms defined as:

Other synonyms of useable include functional, operational, usable.

useable (adjective)	operable (adjective)
convenient for use or disposal	capable of being treated by surgical operation
fit or ready for use or service	usable for a specific purpose
capable of being put to use	fit or ready for use or service