chieftainry (?t?i?ft?nr?) npl -riespl -ries1. another name for chieftaincy2. the area governed by a chieftain3. a group of chieftainsCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014