cover_up
1. [ verb ] hide from view or knowledge
Synonyms: cover
Examples:

"The President covered the fact that he bugged the offices in the White House"

Related terms: hide whitewash cover-up
2. [ verb ] conceal the truth
Examples:

"The White House covered up the burglary"

Related terms: lie cover_for
Similar spelling:   cover-up
  cover_plate
  cover_for
  copperplate