nine vs staff

nine

noun
  • The digit or figure 9. 

  • A playing card with nine pips. 

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

  • 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. 

staff

noun
  • A pole, stick, or wand borne as an ensign of authority; a badge of office. 

  • The grooved director for the gorget, or knife, used in cutting for stone in the bladder. 

  • An arbor, as of a wheel or a pinion of a watch. 

  • A series of verses so disposed that, when it is concluded, the same order begins again; a stanza; a stave. 

  • A long, straight, thick wooden rod or stick, especially one used to assist in walking. 

  • The employees of a business. 

  • A pole upon which a flag is supported and displayed. 

  • An establishment of officers in various departments attached to an army, to a section of an army, or to the commander of an army. The general's staff consists of those officers about his person who are employed in carrying his commands into execution. 

  • A mixture of plaster and fibre used as a temporary exterior wall covering.ᵂ 

  • A series of horizontal lines on which musical notes are written; a stave. 

verb
  • To supply (a business, volunteer organization, etc.) with employees or staff members. 

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