/ Thesaurus / S Synonyms of sand pile Find synonyms for: Noun1. sandbox, sandpile, sandpit, plaything, toyusage: a plaything consisting of a pile of sand or a box filled with sand for children to play inWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language