Crossword clues for Put into operation. 4 lettersAnswerClueUSEDPut in operation.USEDPut into operation.ACTIVATEPut into operation.ACTUATEPut into operation.TURNONPut into operationUSEPut into operationSTARTPut in operation.USEPut in operationANESTHETIZEPut under, in an operating roomGOLIVEPut a previously tested system into operation