Excellency/ˈeksələnsi/ Definition 1 of 2Pro Tip 1/3Formal Address Used in formal communication to address diplomats, bishops, or high-ranked officials. We awaited the arrival of Her Excellency, the Governor. Pro Tip 2/3Cultural Respect Shows respect in cultures that value hierarchy and formal titles. It was an honor to meet His Excellency in person. Pro Tip 3/3Not for Casual Use Avoid using 'excellency' casually; it might seem sarcastic or disrespectful. Don't call your friend 'Your Excellency' jokingly in a formal setting.