Êàçóñ - (ëàòèíñêèé casus), ñëó÷àé, ïðîèñøåñòâèå, ïðèêëþ÷åíèå (îáû÷íî ñìåøíûå, çàòðóäíèòåëüíûå, íåîáû÷àéíûå).