mission >> /ˈmɪʃən/
Definition: [noun] An important assignment carried out for political, religious, or commercial purposes, typically involving travel.
Example: a trade mission to Mexico
Definition: [noun] The vocation or calling of a religious organization, especially a Christian one, to go out into the world and spread its faith.
Example: the Christian mission
Definition: [noun] A strongly felt aim, ambition, or calling.
Example: his main mission in life has been to cut unemployment