Formal invitations are written requests to attend an event, typically used for occasions like weddings, galas, or corporate functions. They follow a specific format, often including details such as the event's date, time, location, and dress code. The language used is usually polite and respectful, reflecting the significance of the occasion. These invitations can be sent in various formats, including printed cards or digital messages. Common elements include the names of the hosts, the purpose of the event, and RSVP instructions. Formal invitations help set the tone for the event and ensure guests have all necessary information to attend, enhancing the overall experience.