A state visit is a formal visit by the head of a sovereign country (or representative of the head of a sovereign country) to another sovereign country, at the invitation of the head of state (or representative) of that foreign country, with the latter also acting as the official host for the duration of the state visit. Speaking for the host, it is generally called a state reception. State visits are considered to be the highest expression of friendly bilateral relations between two sovereign states, and are in general characterised by an emphasis on official public ceremonies.
A less formal visit, with less emphasis on ceremonial events, can be classified in descending order of formality as an official visit, an official working visit, a working visit, a guest-of-government visit, or a private visit.