uni·for·mi·ty 
/ˌju:nəˈfoɚməti/ noun
/ˌju:nəˈfoɚməti/ noun : the quality or state of being the same : the quality or state of being uniform or identical [noncount] ▪ There is little uniformity among the states in voting procedures. [=different states have different voting procedures] [singular] ▪ There is a uniformity of opinion among the students. [=they all have the same opinion]
