den vs squab

den

noun
  • A comfortable room not used for formal entertaining. 

  • Synonym of fort (“structure improvised from furniture, etc. for playing games.”) 

  • A group of Cub Scouts of the same age who work on projects together. 

  • A small cavern or hollow place in the side of a hill, or among rocks; especially, a cave used by a wild animal for shelter or concealment. 

  • A squalid or wretched place; a haunt. 

verb
  • To ensconce or hide oneself in (or as in) a den. 

squab

noun
  • A thick cushion, especially a flat one covering the seat of a chair or sofa. 

  • A baby rook. 

  • A baby pigeon, dove, or chicken. 

  • The meat of such a baby bird used as food. 

  • A person of a short, fat figure. 

verb
  • To stuff thickly and sew through, the stitches being concealed by buttons, etc. 

  • To furnish with squabs, or cushions. 

adv
  • With a heavy fall; plump. 

adj
  • Unfledged; unfeathered. 

  • Curt; abrupt. 

  • Fat; thick; plump; bulky. 

  • Shy; coy. 

  • Clumsy. 

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