armorial bearing vs significant

armorial bearing

noun
  • Heraldry that consists of a design or image depicted on a shield 

significant

noun
  • That which has significance; a sign; a token; a symbol. 

adj
  • Reasonably large in number or amount. 

  • Having a low probability of occurring by chance (for example, having high correlation and thus likely to be related). 

  • Having a covert or hidden meaning. 

  • Having a noticeable or major effect. 

  • Signifying something; carrying meaning. 

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