adverb
under that; thereunder; whereunder
Formal or legal-sounding adverbial phrase meaning 'under that' or 'beneath that', often used in written contexts to refer to a previously mentioned condition, rule, or physical location.
契約書には、その下で細かい条件が書いてある。
In the contract, detailed conditions are written under that.
新しい法律の下で、その下で定められた規則に従わなければならない。
Under the new law, you must follow the rules stipulated thereunder.