- Proper noun. A district or a prefecture in the central and mid SE Peloponnese that has a population of more than 110,000. Tripoli is the capital and a main city with a population over 22,000.
- Proper noun. A mountainous region of ancient Greece.
- Proper noun. A city in California, USA.
- Proper noun. A city in Louisiana, USA.
- Proper noun. Used as a name for an ideal region of rural and idyllic contentment.
- Noun. (alternative capitalization of, Arcadia) .