The word "Gascon" can be replaced by a variety of synonyms. Some of the synonyms for the term "Gascon" include braggart, boaster, swaggerer, show-off, and blowhard. Each of these words describes someone who behaves in an arrogant and boastful manner, often with little regard for the truth. Additionally, "Gascon" can also be used to describe someone from the region of Gascony in southwestern France. In this context, other synonyms might include Gasconade, Gascony, or Gascogne. Regardless of how the word is used, synonyms for "Gascon" can add a more nuanced and descriptive layer to one's language and writing.