Definition of Iran
country in southwestern Asia bordering in the north on the Caspian Sea and in the south on the Persian Gulf and the Gulf of Oman; an Islamic republic since 1979, formerly an empire; capital Tehran area 635,932 square miles (1,647,064 square kilometers), population 75,149,669
Keep scrolling for more
standardized text or formulaic language
Get Word of the Day daily email!
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors
- On Contractions of Multiple Words
- A Look at Uncommon Onomatopoeia
- Is Singular 'They' a Better Choice?