expansionism /ɪkˈspænʃəˌnɪzəm/ noun Learner's definition of EXPANSIONISM
[noncount]
: the belief that a country should grow larger : a policy of increasing a country's size by expanding its territory扩张主义；扩张政策
— expansionist
/ɪkˈspænʃənɪst/ adjective
— expansionist
noun, plural expansionists [count]