Definition of Portsmouth
1 city & port SE New Hampshire on the Atlantic pop 20,779
2 city & port SE Virginia on Elizabeth River opposite Norfolk pop 95,535
3 city S England in Hampshire on Portsea play \ˈpōrt-sē, ˈpȯrt-\ (island in English Channel) pop 174,700
Learn More about portsmouth
Britannica.com: Encyclopedia article about Portsmouth
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