brim vs visor

brim

noun
  • A projecting rim, especially of a hat. 

  • An edge or border (originally specifically of the sea or a body of water). 

  • The topmost rim or lip of a container. 

verb
  • To be full to overflowing. 

  • Of pigs: to be in heat, to rut. 

  • To fill to the brim, upper edge, or top. 

visor

noun
  • The fore piece of a cap, projecting over, and protecting the eyes. 

  • A mask for the face. 

  • A part of a helmet, arranged so as to lift or open, and so show the face. The openings for seeing and breathing are generally in it. 

  • A rigid adjustable flap on an automobile windshield that can shield the eyes of a driver from direct sunlight or glare. 

  • Coordinate terms: bevor, buffe 

verb
  • To cover with, or as if with, a visor. 

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