(ëàò. oppositio - ïðîòèâîïîñòàâëåíèå) - 1) ïðîòèâîäåéñòâèå, ñîïðîòèâëåíèå ÷üèì-ë. äåéñòâèÿì, âçãëÿäàì, ïðîòèâîïîñòàâëåíèå ñâîèõ âçãëÿäîâ, ñâîåé ïîëèòèêè äðóãèì âçãëÿäàì, äðóãîé ïîëèòèêå; 2) ãðóïïà ëèö âíóòðè ê.-ë. îáùåñòâà, îðãàíèçàöèè, êîëëåêòèâà, âåäóùàÿ ïîëèòèêó ïðîòèâîäåéñòâèÿ, ñîïðîòèâëåíèÿ áîëüøèíñòâó (íàïðèìåð, ïàðëàìåíòñêàÿ Î.).