bumper vs substantial

bumper

noun
  • Anything large or successful. 

  • Any mechanical device used to absorb an impact, soften a collision, or protect against impact. 

  • A bouncer. 

  • A short ditty or jingle used to separate a show from the advertisements. 

  • A side wall of a pool table. 

  • Someone or something that bumps. 

  • Parts at the front and back of a vehicle which are meant to absorb the impact of a collision; fender. 

  • An extra musician (not notated in the score) who assists the principal French horn by playing less-exposed passages, so that the principal can save their 'lip' for difficult solos. Also applied to other sections of the orchestra. 

  • A woman's posterior, particularly one that is considered full and desirable. 

  • An object on a playfield that applies force to the pinball when hit, often giving a minor increase in score. 

  • A cigarette butt. 

  • A cylindrical object used (as a substitute for birds) to train dogs to retrieve. 

adj
  • Large; (as if) filled to the bumpers at the top of a silo. 

substantial

noun
  • Anything having substance; an essential part. 

adj
  • Most important; essential. 

  • Not imaginary; real; actual; true; veritable. 

  • Having a substance; actually existing. 

  • Corporeal; material; firm. 

  • Possessed of goods or an estate; moderately wealthy. 

  • Satisfying; having sufficient substance to be nourishing or filling. 

  • Large in size, quantity, or value; ample; significant. 

  • Having good substance; strong; stout; solid; firm. 

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