In a Vodka Martini, what is the primary liquor used?

In a Vodka Martini, the primary liquor used is indeed vodka. This cocktail is specifically defined by its primary ingredient, which distinguishes it from other martini variants, such as the Gin Martini. Vodka serves as the base spirit that gives the drink its characteristic flavor profile. It is typically accompanied by dry vermouth and garnished with an olive or a twist of lemon, but vodka remains the central component of the drink. This clarity in the cocktail’s definition is crucial for identifying and executing it correctly in a bar setting.