Definition from macmillandictionary.com
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Everyone was totally silent as the president spoke.
a crowd of silent onlookers
Fathers were expected to be strong and silent.
a silent woman
If you are arrested, you have the right to remain silent (=you do not have to give information to the police).
For the time being, I prefer to stay silent on the matter.
Everyone was asked to keep silent about the new project.
He said a silent prayer.
We hiked through a silent pine forest.
The house was silent except for the hum of the refrigerator.
High blood pressure is a silent killer.
a silent infection
The ‘h’ in ‘herb’ is silent in American English.
She walked silently towards the door.