誓せい約やく書しょ

noun

written oath; pledge; covenant

A formal written document in which one swears or promises to do something. Often used in legal, business, or official contexts.

• 入にゅう社しゃ時じに秘ひ密みつ保ほ持じの誓せい約やく書しょを提てい出しゅつした。

  I submitted a written pledge of confidentiality when I joined the company.

• 契けい約やくの前まえに、双そう方ほうが誓せい約やく書しょに署しょ名めいする必ひつ要ようがある。

  Before the contract, both parties need to sign a written covenant.