note left by a dead person; suicide note; testamentary letter; will; testament
posthumous work
遺書は厳重に保管されている。
The testament is kept under tight security.
遺書の内容は公開されなかった。
The contents of the testament were not made public.
祖父は正式な遺書を弁護士に預けていたそうだ。
I heard that my grandfather had entrusted a formal testament to a lawyer.