breed vs foster

breed

verb
  • To take care of in infancy and through childhood; to bring up. 

  • To produce offspring sexually; to bear young. 

  • To arrange the mating of specific animals. 

  • To produce or obtain by any natural process. 

  • To have birth; to be produced, developed or multiplied. 

  • To yield or result in. 

  • To ejaculate inside; to attempt to impregnate. 

  • Of animals, to mate. 

  • To propagate or grow plants trying to give them certain qualities. 

  • To give birth to; to be the native place of. 

  • To educate; to instruct; to bring up 

  • To keep animals and have them reproduce in a way that improves the next generation’s qualities. 

noun
  • A race or lineage; offspring or issue. 

  • A group of people with shared characteristics. 

  • All animals or plants of the same species or subspecies. 

foster

verb
  • To nurture or bring up offspring, or to provide similar parental care to an unrelated child. 

  • To cultivate and grow something. 

  • To nurse or cherish something. 

adj
  • Related by such care. 

  • Receiving such care. 

  • Providing parental care to children not related to oneself. 

noun
  • A foster parent. 

  • The care given to another; guardianship. 

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