Usage of the character 緘
jiān
缄
[緘]
- letters
- to close
- to seal
jiānmò
缄默
[緘默]
- to keep silent
jiānkǒubùyán
缄口不言
[緘口不言]
- see 閉口不言／闭口不言 (bìkǒubùyán)
sānjiānqíkǒu
三缄其口
[三緘其口]
- (idiom) reluctant to speak about it
- tight-lipped