biculturalism
Refers to the coexistence or promotion of two distinct cultures within a society, often in policy or educational contexts.
Canada's biculturalism is a policy that respects the cultures of the English-speaking and French-speaking communities.
多文化主義 (multiculturalism) involves more than two cultures, while 二文化主義 specifically refers to two.
Compound of 二 (two), 文化 (culture), and 主義 (principle/doctrine). A straightforward modern coinage for the concept of biculturalism.