sandpile vs sandpit

sandpile and sandpit both are nouns.

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

As nouns, sandpile and sandpit are synonyms defined as:

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

Other synonyms of sandpile include sandbox.

sandpile (noun)	sandpit (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