Cairo definitions

WordNet (r) 3.0 (2005)

n
1: a town at the southern tip of Illinois at the confluence of the Ohio and Mississippi Rivers
2: the capital of Egypt and the largest city in Africa; a major port just to the south of the Nile delta; formerly the home of the Pharaohs [syn: Cairo, Al Qahira, El Qahira, Egyptian capital, capital of Egypt]

Merriam Webster's

geographical name city N Egypt, its capital population 6,663,000 • Cairene adjective or noun