operable
1. [ adjective ] usable for a specific purpose
Synonyms: practicable
Examples:

"an operable plan" "a practicable solution"

Related terms: practical
2. [ adjective ] fit or ready for use or service
Synonyms: operational useable in_working_order usable functional
Examples:

"the toaster was still functional even after being dropped" "the lawnmower is a bit rusty but still usable" "an operational aircraft" "the dishwasher is now in working order"

Related terms: serviceable
3. [ adjective ] (surgery) capable of being treated by surgical operation
Examples:

"an operable cancer"

Related terms: inoperable