As was mentioned in the previous post, the euphemism for death in Jonas' society is called being "released." In a community without pain or suffering, even death is viewed as peaceful and civil. The community "releases" the elderly, newborns that are labeled "Inadequate," and those who have committed three transgressions. In addition to the term "released" is another euphemism associated with death, which is called "Elsewhere." Those who are released are said to have been sent to Elsewhere. Elsewhere is an undefined area outside of the community that Jonas and the other citizens have never seen. At the end of Chapter 19, the Giver shows Jonas a video of his father killing an "inadequate" baby. Jonas is shocked and appalled when he learns that being released means death. Jonas feels like he has been lied to and makes the daring decision to save Gabriel's life.
In our society, there are numerous euphemisms for death. These include: laid to rest, at peace, passed away, didn't make it, gone to a better place, joined the great majority, and so on.