brother vs nephew

brother

noun
  • Son of the same parents as another person. 

  • A form of address to a man. 

  • Someone who is a peer, whether male or female. 

  • A male fellow member of a religious community, church, trades union etc. 

  • A male having at least one parent in common with another (see half-brother, stepbrother). 

  • Somebody, usually male, connected by a common cause, situation, or affection. 

  • A black male. 

  • Someone who is a kinsman or shares the same patriarch. 

verb
  • To treat as a brother. 

intj
  • Expressing exasperation. 

nephew

noun
  • A son of one's cousin or cousin-in-law 

  • A son of one's sibling, brother-in-law, or sister-in-law; either a son of one's brother (fraternal nephew) or a son of one's sister (sororal nephew). 

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