noun
written address
Refers to an address written on a letter, package, or document. Often used in contexts where the address is handwritten or formally inscribed.
封筒に所書きを書く。
Write the address on the envelope.
所書きが間違っていると、手紙が届かない。
If the written address is wrong, the letter won't arrive.
住所 is the general term for an address or place of residence, while 所書き specifically refers to the written form of an address, often on an envelope or document.
宛名 is the name and address of the recipient written on a letter or package, focusing on the addressee; 所書き emphasizes the address itself as written text.
Compound of 所 (tokoro, 'place') and 書き (kaki, 'writing'), literally 'place writing'. The exact historical derivation is uncertain, but it has been used to mean a written address.