nothing vs sing-song

nothing

noun
  • Something trifling, or of no consequence or importance. 

  • A trivial remark especially in the term sweet nothings. 

  • A nobody (insignificant person). 

pron
  • Not any thing; no thing. 

  • An absence of anything, including empty space, brightness, darkness, matter, or a vacuum. 

sing-song

adj
  • Like a piece of sing-song; simple and melodic, song-like. 

noun
  • A kind of verse with a simple, song-like rhythm. 

  • An informal gathering involving group singing. 

How often have the words nothing and sing-song occurred in a corpus of books? (source: Google Ngram Viewer )