Ka with circumflex (current) Gerasimus I of Constantinople Type I error Traction engine Ultrawide formats W.R. Valentiner L. Adaikalaraj Robert Douglas (Australian judge) Operation Backfire (WWII) United Nations Commission on Population and Development Refactorable number Actor-manager Center for Media Freedom and Responsibility LNER Class A2 Army Service Forces Raid on Chignecto (1696) Southern Command (Israel) Languages of science