block out vs tile

block out

verb
  • to prevent from entering or penetrating. 

  • to cover something, so as to make it impossible to see. 

  • to prevent (a thought) from entering one's mind. 

  • to begin to reduce to shape; to mark out roughly; to lay out. 

tile

verb
  • To protect from the intrusion of the uninitiated. 

  • To seal a lodge against intrusions from unauthorised people. 

  • To arrange in a regular pattern, with adjoining edges (applied to tile-like objects, graphics, windows in a computer interface). 

  • To optimize (a loop in program code) by means of the tiling technique. 

  • To cover with tiles. 

noun
  • Any of various flat cuboid playing pieces used in certain games, such as dominoes, Scrabble, or mahjong. 

  • A regularly-shaped slab of clay or other material, affixed to cover or decorate a surface, as in a roof-tile, glazed tile, stove tile, carpet tile, etc. 

  • A rectangular graphic. 

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