what is abv on vodka means
Proof is a number equal to twice the ABV. So in a bottle of 80-proof vodka, for example, the ABV (alcohol by volume) is 40%, which explains why you would get drunk on 10 ounces of vodka but maybe not get drunk on 10 ounces of wine. In other words, both are 10 ounces, but the vodka contains a lot more alcohol by volume than does the wine (40% vs 14%).