from The American Heritage® Dictionary of the English Language, 4th Edition
- The capital and largest city of Iran, in the north-central part of the country south of the Caspian Sea. A commercial and industrial center, it became the capital of Persia (Iran) in 1788 and was modernized under Shah Muhnammed Reza Pahlavi (ruled 1941-1979). Population: 7,800,000.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. The capital city of Iran.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the capital and largest city of Iran; located in northern Iran
From Persian تهران (Tehrān). (Wiktionary)