contend vs umpire

contend

verb
  • To be in debate; to engage in discussion; to dispute; to argue. 

  • To be in opposition; to contest; to dispute; to vie; to quarrel; to fight. 

  • To believe (something is reasonable) and argue (for it); to advocate. 

  • To struggle or exert oneself to obtain or retain possession of, or to defend. 

  • contend with: To try to cope with a difficulty or problem. 

umpire

verb
  • To decide as an umpire. 

  • To act as an umpire in a game. 

noun
  • One of the two white-coated officials who preside over a cricket match. 

  • The official who presides over a tennis match sat on a high chair. 

  • One of the officials who preside over a baseball game. 

  • A match official on the ground deciding and enforcing the rules during play. As of 2007 the Australian Football League uses three; in the past there were two or just one. The other officials, the goal umpires and boundary umpires, are usually referred to by those phrases. 

  • The official who stands behind the line on the defensive side or next to the referee on the offensive side. 

  • A person who arbitrates between contending parties. 

  • The official who presides over a curling game. 

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