bombast vs rhetoric

bombast

noun
  • High-sounding words; language above the dignity of the occasion; a pompous or ostentatious manner of writing or speaking. 

adj
  • Big without meaning, or high-sounding; bombastic, inflated; magniloquent. 

verb
  • To use high-sounding words; to speak or write in a pompous or ostentatious manner. 

  • To swell or fill out; to inflate, to pad. 

rhetoric

noun
  • Meaningless language with an exaggerated style intended to impress. 

  • The art of using language, especially public speaking, as a means to persuade. 

adj
  • Synonym of rhetorical. 

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