1. [ noun ] process or manner of functioning or operating
Synonyms: performance operation

"the power of its engine determine its operation" "the plane's operation in high winds" "they compared the cooking performance of each oven" "the jet's performance conformed to high standards"

Related terms: work process job go
2. [ adjective ] performing or able to perform its regular function

"a functioning flashlight"

Related terms: malfunctioning running up
Similar spelling:   function