convex vs shiner

convex

noun
  • A small convex mirror used to cheat by observing other players' cards. 

  • A playing card made convex for use in cheating. 

  • Any convex body or surface. 

adj
  • arranged such that for any two points in the set, a straight line between the two points is contained within the set. 

  • Curved or bowed outward like the outside of a bowl, circle, or sphere. 

  • having no internal angles greater than 180 degrees. 

  • having an epigraph that is a convex set. 

shiner

noun
  • A small reflective surface used for cheating at card games. 

  • Any silvery fish, such as the horsefish, menhaden, or moonfish. 

  • Raccoon eyes. 

  • One who shines; a luminary. 

  • Any of numerous species of small freshwater American cyprinoid fishes of Notropis, Lythrurus, and allied genera, such as the redfin. 

  • A black eye. 

  • A bottle of finished wine, without a label. 

  • A moonshiner. 

  • One who causes things to shine; a polisher. 

  • The common silverfish, Lepisma. 

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