feature vs mask

feature

verb
  • To appear, to make an appearance. 

  • To ascribe the greatest importance to something within a certain context. 

  • To star, to contain. 

noun
  • An individual measurable property or characteristic of a phenomenon being observed; the input of a model. 

  • A beneficial capability of a piece of software. 

  • Any of the physical constituents of the face (eyes, nose, etc.). 

  • The act of being featured in a piece of music. 

  • Characteristic forms or shapes of parts. For example, a hole, boss, slot, cut, chamfer, or fillet. 

  • A long, prominent article or item in the media, or the department that creates them; frequently used technically to distinguish content from news. 

  • Something discerned from physical evidence that helps define, identify, characterize, and interpret an archeological site. 

  • An important or main item. 

  • The elements into which linguistic units can be broken down. 

  • The cast or structure of anything, or of any part of a thing, as of a landscape, a picture, a treaty, or an essay; any marked peculiarity or characteristic. 

mask

verb
  • To disguise as something else. 

  • 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 take part as a masker in a masquerade. 

  • 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 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. 

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