air cushion vs squab

air cushion

noun
  • A rubber or plastic inflatable cushion. 

  • A shock absorber that uses an air chamber. 

  • A layer of trapped air that supports a hovercraft. 

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. 

adj
  • Unfledged; unfeathered. 

  • Curt; abrupt. 

  • Fat; thick; plump; bulky. 

  • Shy; coy. 

  • Clumsy. 

adv
  • With a heavy fall; plump. 

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

  • To furnish with squabs, or cushions. 

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