Mask/mæsk/ Definition 1 of 5Pro Tip 1/3Protection or Disguise The mask can signify safety or hiding one's identity. Superheroes often wear masks to hide their true identities. Pro Tip 2/3Cultural Significance Masks have cultural meanings in festivals or traditions. Masks are essential in the Venetian Carnival. Pro Tip 3/3Metaphorical Use Metaphorically, 'mask' can imply false appearances or emotions. He maintained a mask of calmness during the chaos.