<human>:  What is the meaning of the word ‘sacrament’ in the context of the book, ‘The History of Lake Como’?
<bot>: The word sacrament is a noun in this context. It means a sacred ceremony, rite, or observance. In the context of the book, the word sacrament refers to a ceremony that is held every year on the lake to honor the dead. The ceremony is called the Sacrament of the Dead, and is performed by the town’s priests.