Definition: cause to be quiet or not talk
Usage: Please silence the children in the church!
Definition: to put down by force or authority
Usage: suppress a nascent uprising; stamp down on littering; conquer one's desires
Definition: cover up a misdemeanor, fault, or error
Usage: Let's not whitewash the crimes of Stalin; She tried to gloss over her mistakes
Definition: hide from view or knowledge
Usage: The President covered the fact that he bugged the offices in the White House