Coffining, which refers to the placement of a body in a coffin, has various synonyms that are often used interchangeably. Some of the most common include entombment, burial, interment, inhumation, and casketing. Other less frequently used synonyms for coffining include sepulture, encoffinment, entombing, and sepulcher. While these terms all convey the basic sense of enclosing the deceased in a container for burial, they can have slightly different connotations and are used in different contexts. Overall, it is important to choose the right synonym for coffining based on the specific context and intended meaning.