1. Noun, Noun which may take the genitive case particle 'no'

   1.

   registered mail; registered post; registration (of mail)

2. Noun

   2.

   (putting on) record; writing down; noting down; registry

Example sentences

• これを書留でお願いします。

  I'd like to send this by registered mail.

• これを書留で送りたいのですが。

  I'd like to send this by registered mail.