1º_ Hand container without lid, usually cylindrical, which serves to contain liquid for drinking. Amount of liquid that fits in it. From the Latin vasum . 2º_ Any container with the same shape as the previous one, even if it has other uses. 3º_ Helmet of the equines. 4º_ For the previous one, very hard nail. 5º_ Duct through which organic fluids such as blood or sap circulate.