A control device to control operations of a plurality of pieces of equipment used in a vehicle includes a search processing unit and an operation target guessing unit. The search processing unit searches, using a search term inputted by a user, for control contents associated with the search term among a plurality of control contents executable by the plurality of pieces of equipment used in the vehicle. The operation target guessing unit guesses, based on the state of the screen currently displayed on a display device, operation target equipment that the user intends to operate. The control device then sorts search results obtained by the searching processing unit in descending order of the degree of relevance to the operation target equipment and has the sorted search results displayed.
