口 kǒu, mouth/classifier for things with mouths (people, domestic animals, cannons, well... 冬 dōng/Dōng, [鼕], winter, surname Dong, (onom.) beating a drum/rat-a-tat 咚 dōng, boom (of a drum) 冫 bīng, "ice" radical in Chinese characters (Kangxi radical 15), occurring in 冰, 决, 次/se... 夂 zhǐ, "walk slowly" component in Chinese characters/see also 冬字頭|冬字头[dōng zì tóu]