Mask (Aco album)
WordNet
noun
(1) Activity that tries to conceal something
"No mask could conceal his ignorance"
"They moved in under a mask of friendship"
(2) A covering to disguise or conceal the face
(3) A protective covering worn over the face
(4) A party of guests wearing costumes and masks
verb
(5) Put a mask on or cover with a mask
"Mask the children for Halloween"
(6) Shield from light
(7) Cover with a sauce
"Mask the meat"
(8) Hide under a false appearance
"He masked his disappointment"