口 kǒu, mouth/classifier for things with mouths (people, domestic animals, cannons, well... 牛 Niú/niú, surname Niu, ox/cow/bull/CL:條|条[tiáo],頭|头[tóu]/newton (abbr. for 牛頓|牛顿[niú dùn])... 哞 mōu, moo (sound made by cow) 牟 Móu/Mù/móu, surname Mou, see 牟平[Mù píng], barley/to moo/to seek or obtain/old variant of 侔[m... 厶 mǒu/sī, old variant of 某[mǒu], old variant of 私[sī]