bury under (something)
To hide something in a particular place so that others cannot find it. A noun or pronoun can be used between "bury" and "under." The cat always buries her toys away under the couch so that the dog can't take them.
bury someone or something under something
to bury someone or something beneath something, sometimes to hide or conceal it. Joe buried the money under a stone in the forest. They buried Aunt Mary under a pine tree.