boule vs formal

boule

noun
  • A single-crystal ingot produced by synthetic means. 

  • A round loaf of bread. 

  • A round piece of dough. 

  • A through-sawn log with the slices restacked in the order and orientation they originally had in the log, usually with waney edges. 

  • A council of citizens in Ancient Greece 

  • One of the bowls used in the French game of boules. 

verb
  • To shape (a piece of dough) into a ball. 

formal

noun
  • An acetal formed from formaldehyde. 

  • An event with a formal dress code. 

  • Formalin. 

  • A formal parameter. 

  • An evening gown. 

adj
  • Official. 

  • Relating to mere manipulation and construction of strings of symbols, without regard to their meaning. 

  • Relating to formation. 

  • Organized; well-structured and planned. 

  • Being in accord with established forms. 

  • Relating to the form or structure of something. 

  • Ceremonial or traditional. 

  • Proper, according to strict etiquette; not casual. 

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