- Seneca, Lucius Annaeus Seneca - Roman statesman and philosopher who was an advisor to Nero; his nine extant tragedies are modeled on Greek tragedies (circa 4 BC - 65 AD)
--1 is a kind of statesman, solon, national leader; dramatist, playwright; philosopher
- Seneca - a member of the Iroquoian people formerly living in New York state south of Lake Ontario
--2 is a kind of Iroquois
- Seneca - the Iroquoian language spoken by the Seneca people
--3 is a kind of Iroquoian, Iroquois, Iroquoian language
- Seneca - the Iroquoian language spoken by the Seneca people