membership vs nine

membership

noun
  • The body of members of an organization. 

  • The state of being a member of a group or organization. 

  • The fact of being a member of a set. 

nine

noun
  • A baseball club, team, or lineup (composed of nine players). 

  • A playing card with nine pips. 

  • The digit or figure 9. 

  • A nine-millimeter semi-automatic pistol. 

  • A statistical unit of proportion (of reliability, purity, etc.). 

num
  • Describing a group or set with nine elements. 

  • A numerical value equal to 9; the number following eight and preceding ten. 

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