sandbox sand-bottomed • sandbox tree · · · Info · Definitions · Synonyms · Characters · · sandbox · · Text Latin · · Script 7 · · Length 2 · · Syllables Definitions · · · (noun) mold consisting of a box with sand shaped to mold metal. · · Noun Definition 1 (noun) a plaything consisting of a pile of sand or a box filled with sand for children to play in. Synonyms: sandpile, sandpit. · · Noun Definition 2 Synonyms · · · sandpile · · Synonym 1 sandpit · · Synonym 2 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 d latin small letter d U+0064 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 x latin small letter x U+0078