I grew up learning this definition of fascism:

[…] chủ nghĩa phát xít […] là nền chuyên chính khủng bố công khai của những phần tử phản động nhất, sô vanh nhất, đế quốc chủ nghĩa nhất của tư bản tài chính.

Source 1: Lịch sử 11, phần hai, chương IV, trang 80 (History 11[th grade], part two, chapter IV, page 80; in Vietnamese; in use from the 1990s to early 2000s).

That definition itself is translated from:

Fascism is the open terrorist dictatorship of the most reactionary, most chauvinist, and most imperialist elements of finance capital.

Source 2: Thirteenth Plenum of E.C.C.I (March 1934 [December 1933]) “Theses of the Plenum of the Executive Committee of the Communist International” in Theses and Decisions, pp. 3-4.

For longer definition, see the 1928 Programme of the Communist International, II. The General Crisis of Capitalism and the First Phase of World Revolution, 3. The Crisis of Capitalism and Fascism. Quote: “The Fascist system is a system of direct dictatorship, […] a terrorist dictatorship of big capital.”

For analysis, the 1928 Theses and Resolutions of the VI. World Congress of the Communist International (First Series), IV.24, p. 1571.