堆 On the HSK 5 vocabulary list, at CEFR level C1. duī ㄉㄨㄟ to pile up to heap up a mass pile heap stack large amount Words with 堆 Starting with 堆 堆积 Ending with 堆 一堆 Words with 堆 Starting with 堆 堆積 Ending with 堆 一堆 Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0 国际中文教育中文水平等级标准, 中华人民共和国教育部, MIT