A more thorough explanation:

A declaration is a formal statement or announcement made by someone, such as an affidavit. It is an official proclamation that can have legal consequences. If the person making the declaration, also known as the declarant, lies in it, they may be charged with perjury.

• A witness in court makes a declaration under oath about what they saw or heard.
• A politician issues a declaration about their stance on a particular issue.
• A company issues a declaration of bankruptcy, stating that they are unable to pay their debts.

These examples illustrate how a declaration can be used in different contexts. In each case, the declarant is making a formal statement that carries weight and can have legal or social consequences. It is important for the declarant to be truthful and accurate in their declaration, as lying can result in serious consequences.