noun
living funeral; funeral held while the person is alive
A ceremony where a person can hear eulogies and say goodbye to loved ones while still alive, often as a celebration of life.
彼は自分の生前葬を開いて、友人たちに感謝の言葉を述べた。
He held his own living funeral and expressed his gratitude to his friends.
葬式 is a standard funeral held after death, while 生前葬 is held while the person is still alive.
Compound of 生前 (while alive) and 葬 (funeral). The term describes a modern practice of holding a funeral-like ceremony for oneself before death.