What does the word “release” mean in the context of the community?

Release is the community’s euphemism for death. In order to shelter its citizens from the frightening reality of death, the elders claim the released people go “Elsewhere,” a term that also refers to the land outside the community. Jonas therefore imagines released people, such as the elderly woman Larissa, living peacefully in new communities. Only after watching his father conduct a “release” by injecting a baby with poison does Jonas understand the real meaning of the word.