• dichotomy /daɪˈkɑːtəmi/ [usually singular] (formal) (plural dichotomies) -a division or contrast between two groups or things that are completely opposite to and different from each other : 주로 단수로 격식 (pl. -ies) 양분(兩分), 이분(二分) e.g.) dichotomy (between A and B) • dichotomize /daɪˈkɒtəˌmaɪz/ , /daɪˈkɑdəˌmaɪz/ -to divide or become divided into two parts or classifications - 콜린스 -intransitive verb..