A more thorough explanation:

Definition: Inauguration is a special ceremony that introduces a public official into their new job. During the ceremony, the official usually takes an oath to uphold their duties and responsibilities. The most famous example of an inauguration is the swearing-in of the President of the United States, which happens every four years on January 20th.

Example: When Joe Biden was elected as the 46th President of the United States, he had to go through an inauguration ceremony. During the ceremony, he took an oath to "preserve, protect and defend the Constitution of the United States." This marked the beginning of his term as President.

Explanation: The example illustrates how an inauguration ceremony is used to introduce a new public official into their job. In this case, Joe Biden became the President of the United States and had to take an oath to uphold the Constitution. The inauguration ceremony is an important event that marks the beginning of a new administration and sets the tone for the official's term in office.