What term describes the burial of a body in the ground?

The term that describes the burial of a body in the ground is interment. Interment specifically refers to the act of placing a deceased person's body into the ground as part of the burial process, typically in a grave or tomb. This term encapsulates both the physical act of burial and the ceremonial aspects that often accompany it.

In contrast, entombment refers to the practice of placing a body in a mausoleum or tomb above ground rather than burying it. Disinterment involves the removal of a body from its grave, while exhumation is the formal process of digging up a corpse or remains from a grave, often for legal or forensic reasons. Thus, interment is the correct term for burying a body in the ground, as it directly relates to the final resting process in a grave.