noun

• A surname from Irish, Anglicised from the Irish Ó Ceallaigh.
• A unisex given name transferred from the surname
• A male given name transferred from the surname.
• A female given name transferred from the surname, popular from the 1960s to the 1990s.
• A placename
• A number of places in the United States:
• An unincorporated community in Nemaha County, Kansas.
• An unincorporated community in Christian County, Kentucky.
• An unincorporated community in Caldwell Parish, Louisiana.
• A census-designated place in Bladen County, North Carolina.
• A township in Union County, Pennsylvania.
• An unincorporated community in Collin County, Texas.
• An unincorporated community in Logan County, West Virginia.
• A town in Bayfield County, Wisconsin.
• An unincorporated community in Clearfield, Juneau County, Wisconsin.
• A census-designated place in Teton County, Wyoming.
• A small village and civil parish (without a council) in West Devon district, Devon, England (OS grid ref SX3981).
• A locality on the Eyre Peninsula, South Australia, Australia.
• A square or hexagonal pipe that is turned in order to rotate the rotary table of a drilling rig.