mask vs masquerade

mask

verb
  • To take part as a masker in a masquerade. 

  • To set or unset (certain bits, or binary digits, within a value) by means of a bitmask. 

  • To bewilder; confuse. 

  • To conceal from view or knowledge; to cover; to hide. 

  • To conceal or disguise one's autism. 

  • To prepare tea in a teapot; alternative to brew. 

  • To disable (an interrupt, etc.) by setting or unsetting the associated bit. 

  • To cover (the face or something else), in order to conceal the identity or protect against injury; to cover with a mask or visor. 

  • To conceal; also, to intervene in the line of. 

  • (brewing) To mix malt with hot water to yield wort. 

  • to cover or shield a part of a design or picture in order to prevent reproduction or to safeguard the surface from the colors used when working with an air brush or painting 

  • To mash. 

  • To disguise as something else. 

  • To cover or keep in check. 

  • To wear a mask. 

  • To be infused or steeped. 

noun
  • The mesh of a net; a net; net-bag. 

  • A cover, or partial cover, for the face, used for disguise or protection. 

  • That which disguises; a pretext or subterfuge. 

  • A person wearing a mask. 

  • A pattern of bits used in bitwise operations; bitmask. 

  • A two-color (black and white) bitmap generated from an image, used to create transparency in the image. 

  • mesh 

  • The lower lip of the larva of a dragonfly, modified so as to form a prehensile organ. 

  • In a permanent fortification, a redoubt which protects the caponiere. 

  • A festive entertainment of dancing or other diversions, where all wear masks; a masquerade. 

  • Mash. 

  • The head of a fox, shown face-on and cut off immediately behind the ears. 

  • A social phenomenon where autistic people learn, practice, and perform certain behaviors and suppress others in order to appear more neurotypical. 

  • A flat covering used to block off an unwanted portion of a scene or image. 

  • A grotesque head or face, used to adorn keystones and other prominent parts, to spout water in fountains, and the like. 

  • A screen for a battery. 

masquerade

verb
  • To take part in a masquerade; to assemble in masks and costumes; (loosely) to wear a disguise. 

  • To conceal (someone) with, or as if with, a mask; to disguise. 

  • To pass off as a different person or a person with qualities that one does not possess; also, to make a pretentious show of being what one is not. 

noun
  • The act of wearing a mask or dressing up in a costume for, or as if for, a masquerade ball. 

  • An assembly of varied, often fanciful, things. 

  • An assembly or party of people wearing (usually elaborate or fanciful) masks and costumes, and amusing themselves with dancing, conversation, or other diversions. 

  • A cosplay event at which costumed attendees perform skits. 

  • An act of living under false pretenses; a concealment of something by a false or unreal show; a disguise, a pretence; also, a pretentious display. 

How often have the words mask and masquerade occurred in a corpus of books? (source: Google Ngram Viewer )