plural of Cossack

plural of cossack

A member or descendant of an originally (semi-)nomadic population of Eastern Europe and the adjacent parts of Asia, formed in part of runaways from neighbouring countries, that eventually settled in parts of the Polish-Lithuanian Commonwealth and the Russian tsarist Empire (where they constituted a legendary military caste), particularly in areas now comprising southern Russia and Ukraine.

Alternative letter-case form of Cossack

(military) An outpost consisting of four men, forming one of a single line of posts substituted for the more formal line of sentinels and line of pickets.

plural of Cossack post