成堆 chéngduī to pile up Origin Definitions Defs Strokes Stroke Words Sentences Sents chéngduī to pile up 成 chéng verbparticle to become to become; to turn into; to change into堆 duī verb to pile up to stack, heap, or gather items together; to accumulatechéngduī piled up 成 chéng numeralverb in great numbers (bound form) in considerable numbers or amounts; by the (set, thousands, etc.)堆 duī measure word [pile/heap] classifier for heaps, piles, or crowds of people