缄口

缄口 [jiān kǒu]

1. ■ [书] keep one's mouth shut; hold one's tongue; say nothing:

缄口不答 make no reply at all;

缄口不言 keep silent; hold one's tongue; keep silence; keep silent and say nothing; seal one's lips and say nothing; keep one's mouth shut and say nothing;

缄口结舌 bite the lip or tongue