How many letters does the top answer for “another word for sandbox” have?

The most common answer is sandpile (8 letters).

Crossword clue: another word for sandbox

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

sandpile 8 letters gen-syn

a plaything consisting of a pile of sand or a box filled with sand for children to play in

sandpit 7 letters gen-syn

a plaything consisting of a pile of sand or a box filled with sand for children to play in

another word for about 50% similar → approximately, roughly, some

another word for terms 50% similar → footing

another word for under 50% similar → nether

another word for word 50% similar → phrase