The amount of any alcoholic beverage that delivers half-ounce (around 15 mL) of pure ethanol, which is equivalent to 4-5 ounces (around 120-150 mL) of wine, 10 ounces (around 300 mL) of cooler, 12 ounces (around 360 mL) of beer, or 1.25 ounces (around 40 mL) of distilled liquor (80 proof of whisky, scotch, rum, or vodka)