using sand or sandpaper in order to smooth down or provide a better grip;
e.g. He had to sand the edges of the table in order to lessen the injury as people frequently bumping into the table's pointed edge.
(noun)
a loose granular substance often found on beaches, resulting from the disintegration of stones and consisting of particles smaller than pebbles but coarser than silt, and utilized in mortar, glass, abrasives, and foundry molds;
e.g. The sand was cool under her feet as she walked across the beach at night.