- 苏 蘇 proper nounabbreviation of 苏联 蘇聯Soviet UnionSoviet Union (1922-1991); abbreviation for 苏维埃社会主义共和国联盟
- abbreviation of 修正主义 修正主義revisionismIdeological trend in the socialist movement that seeks to alter or reject core principles of Marxism; specifically the gradualist reform theories proposed by Eduard Bernstein.