A wine connoisseur is someone who has a deep knowledge and appreciation of wines. An oenophile is another term for a wine connoisseur, which is derived from the Greek word oinos, meaning wine. A wine connoisseur is typically someone who has studied the different types of wines, their production, and the various regions in which they are produced. They are also knowledgeable about the different styles of wines, such as reds, whites, and sparkling wines, and can identify the characteristics of each. They often have a refined palate and can distinguish between subtle differences in flavor and aroma.