REPAIR definition
STEM in a real world setting needs a non-technical vocabulary, for example
RE·PAIR /rəˈper/ = verb generally meaning "fix or mend a thing suffering from damage or a fault"; more specific meanings = (a) make good such damage by fixing or repairing it"; (b) put right a damaged relationship or unwelcome situation" ... also, a noun generally meaning "the action of fixing or mending something; more specific meanings = (a) "a result of fixing or mending"; (b) "the relative physical condition of an object"