What is the meaning of masked?

verb

• Hide under a false appearance.
  • usage: "He masked his disappointment"
  • synonyms: dissemble, cloak, mask
• Put a mask on or cover with a mask.
  • usage: "Mask the children for Halloween"
  • synonyms: mask
• Make unrecognizable.
  • usage: "The herb masks the garlic taste"; "We disguised our faces before robbing the bank"
  • synonyms: disguise, mask
• Cover with a sauce.
  • usage: "mask the meat"
  • synonyms: mask
• Shield from light.
  • synonyms: mask, block out

adjective

• Having its true character concealed with the intent of misleading.
  • usage: "hidden agenda"; "masked threat"
  • synonyms: cloaked, disguised
• Having markings suggestive of a mask.
  • usage: "the masked face of a raccoon"