after death; posthumous
Used as a noun or adverb to refer to the time after someone's death. Common in formal, legal, and news contexts.
彼の死後、多くの人がその功績を称えた。
After his death, many people praised his achievements.
After his death, many of his works were discovered.
死後の世界についての考え方は宗教によって異なる。
Ideas about the afterlife differ depending on the religion.
A hundred years after his death, his paintings were reappraised.
Many people believe there is an afterlife.
The letter was discovered after her death.
死後 is the common modern word directly meaning 'after death,' while 後（のち）expresses this meaning mainly in set phrases like 亡きのち.
生前 refers to the time during a person's life, the direct opposite of 死後 'after death'.
生後 means the period after birth, while 死後 means the period after death; both attach 後 to a life-stage character.
死語 (also read しご) means a 'dead/obsolete word or language', not 'after death' like 死後 — the two are unrelated words that merely sound identical.
rigor mortis
Compound of 死 (death) and 後 (after).