Period (punctuation)
A point may be used after a word has been shortened: Pty. Ltd. The words doctor, mister, and mistress are often made shorter when used with a name. "Dr. Smith" is the name of a doctor whose last name is Smith, and "Mr." Banerjee is short for Mister Banerjee. "Mrs" means a wife, "Miss" is an unmarried female. "Ms" can be used for either. A point is also used after a first or middle initial, but does not follow the last name, for example, "J. Citizen".