(noun) a vote by which the people of an entire country or district express an opinion for or against a proposal especially on a choice of government or ruler
Not for nothing is the plebiscite, the institution most closely associated with populism—populists are regarded as quintessential supporters of ‘plebiscitary democracy’—the only one that retains a clear trace of its ‘plebeian’ origin (plebs: common people; scitum: decree)