noun

• An independent city in Virginia, United States.
• Various other towns and cities, including:
• A census-designated place, the borough seat of Petersburg Borough, Alaska.
• A city, the county seat of Menard County, Illinois.
• A city, the county seat of Pike County, Indiana.
• A small city in Monroe County, Michigan.
• A small city in Nelson County, North Dakota.
• A borough in Huntingdon County, Pennsylvania.
• A town in Lincoln County and Marshall County, Tennessee.
• A small city in Hale County, Texas.
• A city, the county seat of Grant County, West Virginia.
• A campaign in the American Civil War.
• Alternative form of Saint Petersburg, a federal city of Russia, formerly Leningrad. [A federal city of Russia, known between 1914 and 1924 as Petrograd and between 1924 and 1991 as Leningrad, and former capital of Russia (1713–1728, 1732–1918).]