Omaha (Noun) — A member of the Siouan people formerly living in the Missouri river valley in northeastern Nebraska.
Omaha (Noun) — Largest city in Nebraska; located in eastern Nebraska on the Missouri river; a major transportation centre of the Midwest.
Omaha (Noun) — Thoroughbred that won the triple crown in 1935.
Omaha (Noun) — The Dhegiha dialect spoken by the Omaha.