大二 dà'èr sophomore Origin Definitions Defs Strokes Stroke Words Sentences Sents 大 dà noun abbreviation of 大学 大學 dàxué university university; college; a higher education institution that provides teaching and research across various academic departments二 èr noun abbreviation of 二年级 二年級 èrniánjí second grade second grade in school; second-year class; sophomore year of high school or college