neither vs nil

neither

det

  • Not one of two; not either. 

  • Not either (used with nor). 

adv

  • Similarly not. 

pron

  • Not either one of two. 

nil

det

  • No, not any. 

noun

  • Nothing; zero. 

  • A score of zero 

How often have the words neither and nil occurred in a corpus of books? (source: Google Ngram Viewer )