Synonyms for Death:

n.

live, rest, curtain. casualty. •death (noun)
extinction, parting, end, rest, destruction, quietus, passing, dying, demise, decease, fatality, release, dissolution, last, annihilation.
•destruction (noun)
mortality.
•end of life (noun)
extinction, darkness, expiration, euthanasia, release, exit, casualty, destruction, decease, cessation, demise, quietus, ending, grave, sleep, necrosis, afterlife, annihilation, finis, tomb, bereavement, loss, passing, termination, mortality, heaven, paradise, parting, finish, fatality, end, repose, departure, dissolution, dying, oblivion.
•event (noun)
decease.
•leaving (noun)
exit.
•loss (noun)
bereavement.

v.

•failing (verb)
nearly dead, wasting away.

Other synonyms:

death throes. casualty. grave. •mercy killing
euthanasia.
•Other relevant words:
heaven, grave, tomb, sleep, necrosis, destruction, departure, casualty, loss, afterlife, repose, bereavement, last, mortality, darkness, closure, oblivion, morbidity, euthanasia, dying, curtain, paradise, rest.

Usage examples for death

1. But what is death – Anna St. Ives by Thomas Holcroft

2. If what is play to me is death to you, I have done. – Tales & Novels, Vol. IX [Contents: Harrington; Thoughts on Bores; Ormond] by Maria Edgeworth

3. The town had met death – In the Heart of a Fool by William Allen White