口 kǒu, mouth/classifier for things with mouths (people, domestic animals, cannons, well... 交 jiāo, to hand over/to deliver/to pay (money)/to turn over/to make friends/to intersect... 咬 yǎo, [齩], to bite/to nip, variant of 咬[yǎo] 父 fù, father 亠 tóu, "lid" radical in Chinese characters (Kangxi radical 8)