battle vs cooperation

battle

verb
  • To render (land, soil, etc.) fertile or fruitful. 

  • To feed or nourish (someone or something). 

  • To join in battle; to contend in fight 

  • To fight or struggle; to enter into a battle with. 

adj
  • Improving; nutritious; fattening. 

  • Fertile; fruitful. 

noun
  • A contest, a struggle. 

  • A general action, fight, or encounter, in which all the divisions of an army are or may be engaged; a combat, an engagement. 

  • battle buddy 

cooperation

noun
  • The act of cooperating. 

  • Association for mutual benefit, such as for purposes of production or purchase. 

  • Active help from a person, organization, etc., such as an orderly sharing of space or resources. 

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