deep secret

language: ru

definitions

  1. A highly confidential or profound piece of information that is kept hidden, often involving significant emotional, spiritual, or life-altering implications.
    ru: глубокая тайна

examples

  1. The ancient artifact held a deep secret about the origins of the civilization.

    Древний артефакт хранил глубокую тайну происхождения цивилизации.