To place the body in an above-ground structure such as a mausoleum is called?

The term that refers to placing a body in an above-ground structure such as a mausoleum is "entombment." This process involves securing the remains in a sealed chamber, which can be part of a larger mausoleum or a niche within a columbarium, depending on the specific structure used. Entombment is distinct from other burial practices as it does not involve placing the body in the ground, which is what interment refers to.

The key aspect of entombment is the permanence and protection that these above-ground structures offer, often associated with both practical and symbolic significance in memorializing the deceased. Additionally, unlike disinterment and exhumation, which pertain to the removal of remains from a burial site, entombment is solely focused on the deposit of the body in its final resting place.