Match the vocabulary word with its meaning.

Holocaust ________
Socialism ________
Bolshevik ________
Nationalism ________
Liberalism ________
Genocide ________
a. The systematic killing of a people group by another
b. A political orientation that favors social progress by reform and changing laws
c. A member of the left-wing majority group of the Russian Social Democratic Workers' Party
d. A strong sense of love and devotion toward one's own nation, especially to the exclusion or harm of another nation
e. A system of social organization in which producing and distributing goods is owned collectively or by a centralized government
f. The systematic mass slaughter of European Jewish, Roma, and gay people; people with disabilities; and others by the Nazis and their collaborators