Dirt
Part of speech: noun
Definition: Soil or earth. A stain or spot (on clothes etc); any foreign substance that worsens appearance. Previously unknown negative facts (or invented "facts") about a person, gossip.
Sand
Part of speech: noun
Definition: Rock that is ground more finely than gravel, but is not as fine as silt (more formally, see grain sizes chart), forming beaches and deserts and also used in construction. Sand may be blown around by the wind; gravel is too heavy, and silt (on beaches) does not usually have time to dry out between tides.(often in plural sands) a beach or other expanse of sand.Personal courage (used before or around 1920s)A light beige colour, like that of typical sand.
Part of speech: adjective
Definition: Of a light beige colour, like that of typical sand.
Part of speech: verb
Definition: To abrade the surface of (something) with sand or sandpaper in order to smooth or clean it.To cover with sand.