Mensa is the largest and oldest high IQ society in the world. It is a non-profit organization open to people who score at the 98th percentile or higher on a standardized, supervised IQ or other approved intelligence test. Mensa formally comprises national groups and the umbrella organization Mensa International, with a registered office in Caythorpe, Lincolnshire, England (which is separate from the British Mensa office in Wolverhampton). The word mensa (/ˈmɛnsə/; Latin: [ˈmensa]) means "table" in Latin, as is symbolized in the organization's logo, and was chosen to demonstrate the round-table nature of the organization; the coming together of equals.