"Laid to rest" is a common synonym for "laid the grave." This phrase carries a similar connotation, the idea of a peaceful end to one's life journey. Other synonyms for "laid the grave" may include phrases like "buried," "interred," or "placed in the ground." These synonyms, each with a slightly different nuance, all describe the action of placing a loved one or companion in their final resting place. It's important to remember that losing someone close to us can be incredibly difficult, and choosing the right words to describe their passing can provide a great deal of comfort and closure.