noun

• An ancient Roman praenomen.
• Pliny the Elder, Gaius Plinius Secundus (23–79 AD): an ancient Roman nobleman, scientist and historian, author of Naturalis Historia, "Pliny's Natural History".
• Pliny the Younger, Gaius Plinius Caecilius Secundus (63–circa 113): an ancient Roman statesman, orator, and writer, a great-nephew of Pliny the Elder.