hush up

Verb	1.	hush up - cover up a misdemeanor, fault, or error; "Let's not whitewash the crimes of Stalin"; "She tried to gloss over her mistakes" Synonyms: sleek over, whitewash, gloss over
	2.	hush up - cause to be quiet or not talk; "Please silence the children in the church!" Synonyms: silence, still, hush, quieten, shut up

cover, cover up, gloss over, sleek over, whitewash