1. (

• whitewash ,
• gloss_over ,
• sleek_over ,
• hush_up

) cover up a misdemeanor, fault, or error; "Let's not whitewash the crimes of Stalin"; "She tried to gloss over her mistakes" ;

2. (

• whitewash

) cover with whitewash; "whitewash walls" ;

3. (

• whitewash

) exonerate by means of a perfunctory investigation or through biased presentation of data ;