"operable" in the adjective sense
1. operable
capable of being treated by surgical operation
"an operable cancer"
2. functional, usable, useable, operable, operational
fit or ready for use or service
"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"
3. operable, practicable
usable for a specific purpose
"an operable plan"
"a practicable solution"
Source: WordNet® (An amazing lexical database of English)
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