pretension vs pretensions

pretension

noun
  • A claim or aspiration to a particular status or quality. 

  • Pretentiousness. 

verb
  • To apply tension to reinforcing strands before concrete is poured in. 

  • To apply tension to an object before some other event or process. 

pretensions

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