boundary vs spoke

boundary

noun
  • An edge or line marking an edge of the playing field. 

  • The bounds, confines, or limits between immaterial things (such as one’s comfort zone, privacy, or professional sphere and the realm beyond). 

  • The dividing line or location between two areas. 

  • An event whereby the ball is struck and either touches or passes over a boundary (with or without bouncing), usually resulting in an award of 4 (four) or 6 (six) runs respectively for the batting team. 

  • (of a set) The set of points in the closure of a set S, not belonging to the interior of that set. 

spoke

noun
  • A support structure that connects the axle or the hub of a wheel to the rim. 

  • A projecting handle of a steering wheel. 

  • A rung of a ladder. 

  • One of the outlying points in a hub-and-spoke model of transportation. 

  • A device for fastening the wheel of a vehicle to prevent it from turning when going downhill. 

verb
  • simple past tense of speak 

  • To furnish (a wheel) with spokes. 

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