bottle vs spine

bottle

noun
  • (originally "bottle and glass" as rhyming slang for "arse") Nerve, courage. 

  • A container, typically made of glass or plastic and having a tapered neck, used primarily for holding liquids. 

  • A container with a rubber nipple used for giving liquids to infants, a baby bottle. 

  • The contents of such a container. 

  • A container of hair dye, hence with one’s hair color produced by dyeing. 

  • Intoxicating liquor; alcohol. 

  • A building; house. 

verb
  • Of pages printed several on a sheet: to rotate slightly when the sheet is folded two or more times. 

  • To refrain from doing (something) at the last moment because of a sudden loss of courage. 

  • To seal (a liquid) into a bottle for later consumption. Also fig. 

  • To throw away a leading position. 

  • To strike (someone) with a bottle. 

  • To pelt (a musical act on stage, etc.) with bottles as a sign of disapproval. 

  • To feed (an infant) baby formula. 

spine

noun
  • Courage or assertiveness. 

  • The stiffness of an arrow. 

  • The narrow, bound edge of a book that encloses the inner edges of the pages, facing outwards when the book is on a shelf and typically bearing the title and the author's and publisher's name. 

  • The heartwood of trees. 

  • A pointed, fairly rigid protuberance or needlelike structure on an animal, shell, or plant. 

  • Something resembling a backbone, such as a ridge, or a long, central structure from which other structures radiate. 

  • A series of bones situated at the back from the head to the pelvis of a human, or from the head to the tail of an animal, enclosing the spinal cord and providing support for the thorax and abdomen. 

  • A linear payscale operated by some large organizations that allows flexibility for local and specific conditions. 

  • A tall mass of viscous lava extruded from a volcano. 

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