What does 遺書 mean?
遺書 is a Japanese noun meaning “suicide note, will” in English. It can also be translated as “posthumous work” depending on context. It is written as 遺書 in kanji, いしょ in hiragana, and isho in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
叔父は去年遺書を作った。
My uncle made a will last year.