English definition of “quiet”
NOT NOISY › making little or no noise: Can you be quiet, please? The children are very quiet.
NOT BUSY › without much noise or activity: I fancy a quiet night in tonight. They found a table in a quiet corner of the restaurant.
NOT TALKING MUCH › If someone is quiet, they do not talk very much: He was a shy, quiet man.
keep (sth) quiet › to not talk about something that is secret: It might be wise to keep this quiet for a while.