hush_up
1. [ verb ] cover up a misdemeanor, fault, or error
Synonyms: gloss_over sleek_over whitewash
Examples:

"Let's not whitewash the crimes of Stalin" "She tried to gloss over her mistakes"

Related terms: cover whitewash
2. [ verb ] cause to be quiet or not talk
Synonyms: silence still hush shut_up quieten
Examples:

"Please silence the children in the church!"

Related terms: louden suppress dampen lull gag shush shout_down whitewash hush silence silence muteness hush silencer hush