excellency
n. C / Un. a formal title used when speaking to or about very important people, like ambassadors or high government officials. You usually use it with 'Your' or 'His/Her'.
n. a title of honour given to high-ranking officials such as ambassadors, bishops, or heads of state. When used as a direct address, it is preceded by the possessive pronoun 'Your'.
Your Excellency, the guests have arrived for the dinner.
The protocol officer reminded the staff to address the visiting ambassador as 'His Excellency' during the formal reception.
While the term is often reserved for diplomatic circles, certain ecclesiastical and governmental traditions maintain the use of 'Excellency' to denote the high status of the office holder.
When used as a title, it is typically capitalised and preceded by a possessive pronoun ('Your', 'His', 'Her').
The Excellency arrived late.His Excellency arrived late.The word is a title of address and requires a possessive pronoun like 'His' or 'Your' rather than a definite article.