Guignolet is a French liqueur made from cherries. If you are looking for synonyms for this particular word, you can use cherry brandy, Kirsch, or maraschino liqueur. These are all similar types of cherry-based liqueurs that can be used as substitutes for guignolet in cocktails and other recipes. Other alternatives include cherry liqueur, cherry schnapps, and cherry eau de vie. Whether you're mixing drinks or trying out new recipes, there are plenty of options available to help you achieve a similar flavor profile to guignolet without using the exact same ingredient.