Death knells are ominous bell tolls that symbolize the passing of a loved one or the end of an era. Synonyms for this phrase might include "final toll," "mourning bell," and "funeral chime." Other related terms might include "last rites" or "final farewell," alluding to the solemnity and finality of the occasion. These phrases are often used to describe moments of great sadness or tragedy, such as the passing of a beloved community member, the end of an era of economic prosperity, or the end of a relationship. In any case, such moments serve as a reminder of the fragility of life and the importance of cherishing those we love while we can.