- a former city in SE Ontario, Canada, now part of Ottawa.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for nepean
The Nepean and Phillip Islands lie to the south of the main island.A Modern Buccaneer
At the extremity of the Nepean is the most extensive tract of land that has yet been discovered.
Around this trap-range lies the fertile district of the Cowpastures, watered by the Nepean river.
In the valleys of the Hawkesbury and Nepean rivers, the richness of the soil is very great, and the plains are extensive.Australia, its history and present condition
I send you a copy of my letter intended to be sent to Mr. Nepean; keep it quiet till you get off.