anarchy(absence of any form of political authority or government) noun [UK: ˈæ.nək.i] [US: ˈæ.nərk.i]
interregnum [interregna](period of time during which normal executive leadership is suspended or interrupted) noun [UK: ˌɪn.tə.ˈreɡ.nəm] [US: ˌɪn.tər.ˈreɡ.nəm]