1º_ Slab, tile, block of stone or flat marble to cover the floor or wall. Also the flooring of each floor in a building although in this case it is made of metal beam and cement. 2º_ By extension, the cover of a tomb. 3º_ Type of trap to hunt small animals, which when entering a well or hollow are prevented from leaving by placing a flat stone or slab on top. 4º_ For the previous one, and figuratively, excessive weight or load that must be supported and prevent us from progressing.