Ka cika wannan jumla: Tuyutí (), "farin laka" a yaren guaraní, wuri ne mai laka da ke da tafki a kudu maso yammacin Paraguay. Ya zama sananne a lokacin Yakin Paraguay, yayin da sojojin da ke kawance suka yi taho-mu-mu a kai na tsawon shekaru biyu. Ƙungiyar
Yaƙin Tuyutí a 1866 shine yaƙi mafi girma da aka taɓa yi a Kudancin Amurka kuma ranar da ta fi kowa mutuwa a tarihin Amurka. An kuma yi ƙaramin Yaƙin Tuyutí na Biyu a can.