mask in WordNet English dictionary

1. shield from light
   mask  block out 
   
2. hide under a false appearance
   "He masked his disappointment"
   dissemble  cloak  mask 
   
3. make unrecognizable
   "The herb masks the garlic taste"; "We disguised our faces before robbing the bank"
   disguise  mask 
   
4. put a mask on or cover with a mask
   "Mask the children for Halloween"
   mask 
   
5. cover with a sauce
   "mask the meat"
   mask 
   

1. activity that tries to conceal something
   "no mask could conceal his ignorance"; "they moved in under a mask of friendship"
   mask 
   
2. a covering to disguise or conceal the face
   mask 
   
3. a protective covering worn over the face
   mask 
   
4. a party of guests wearing costumes and masks
   masquerade  masquerade party  masque  mask