in ‧ sur ‧ rec ‧ tion /ˌɪnsəˈrekʃ ə n/ BrE AmE noun [uncountable and countable] formal
[ Date: 1400-1500 ; Language: Late Latin ; Origin: insurrectio , from Latin insurgere ; ⇨ ↑ insurgent ]
an attempt by a large group of people within a country to take control using force and violence SYN rebellion
insurrection against
an armed insurrection against the party in power
—insurrectionist noun [countable]