sandpit vs sandpile

sandpit and sandpile both are nouns.

Word	Noun	Adjective	Verb	Adverb
sandpit	Yes	No	No	No
sandpile	Yes	No	No	No

As nouns, sandpit and sandpile are synonyms defined as:

sandpit and sandpile: a plaything consisting of a pile of sand or a box filled with sand for children to play in

Other synonyms of sandpit include sandbox.

sandpit (noun)	sandpile (noun)
a plaything consisting of a pile of sand or a box filled with sand for children to play in	a plaything consisting of a pile of sand or a box filled with sand for children to play in
a large pit in sandy ground from which sand is dug