noun

• A member of the common people who holds no title or rank.
• (Britain) Someone who is not of noble rank.
• (obsolete, UK, Oxford University) A student who is not dependent on any foundation for support, but pays all university charges; at Cambridge called a pensioner.
• Someone who has a right over another's land. They hold common rights because of residence or land ownership in a particular manor, especially rights on common land. eg: centuries-old grazing rights
• (obsolete) One sharing with another in anything.
• (obsolete) A prostitute.