mission |ˈmi sh ən|
                noun
                an important assignment...typically involving travel
                • [treated as sing. or pl. ] a group of people taking part in such an assignment
                • [in sing. ] an organization or institution involved in a long-term assignment in a foreign country 
                • the vocation or calling of a religious organization, esp. a Christian one, to go out into the world and spread its faith : the Christian mission
                • a strongly felt aim, ambition, or calling 
                 
                ORIGIN mid 16th cent.:
                (denoting the sending of the Holy Spirit into the world)