Pernod is a type of French liqueur that has a strong anise flavor and is popularly used in cocktails and as an aperitif. There are a few synonyms for Pernod that are often used interchangeably, such as absinthe, pastis, and ouzo. Absinthe is a more potent drink that also contains anise and is often associated with the "green fairy" phenomenon. Pastis is similar to Pernod in flavor but is usually less alcoholic, while ouzo is a Greek liqueur made with anise and other herbs. No matter which drink you choose, they are all ideal for a refreshing summer drink or a creative cocktail.