(Ireland) A fool, someone who is out of their senses, simpleton.

plural of omadhaun

(Islam) Omar bin al-Khattab / A male given name from Arabic

plural of -oma

A member of a tribe of Native Americans currently residing in northeastern Nebraska and western Iowa.

The largest city in Nebraska, United States, and the county seat of Douglas County. / The language spoken by the Omaha tribe. / (poker) Omaha hold 'em, any of several poker variants.

A variant of poker where individuals each receive four private cards of which exactly two can be used to form a five-card hand, and five other cards are shared between them.

The omasum.

(biology, food) The third compartment of the stomach of a ruminant; the lining of said compartment, regarded as a foodstuff.

plural of Omani