缄 ㄐㄧㄢ jiān 口 ㄎㄡ ˇ kǒu 不 ㄅㄨ ˋ bù 言 ㄧㄢ ˊ yán 緘 ㄐㄧㄢ jiān 口 ㄎㄡ ˇ kǒu 不 ㄅㄨ ˋ bù 言 ㄧㄢ ˊ yán lips sealed and not saying anything (idiom); fig. to omit mention (of a non-person or embarrassing topic) to censor