Key lime pie is a sweet and tart dessert that has become a popular treat across the United States. While it is traditionally made with key limes, there are many variations of this dessert that use different ingredients. Some synonyms for "key lime pie" include lime tart, lime cheesecake, and lime custard. Lemon-lime pie and citrus pie may also be used to describe desserts that have a similar flavor profile. Additionally, there are many creative twists on this classic dessert, such as coconut lime pie and strawberry limeade pie. No matter which variation you choose, key lime pie is sure to be a refreshing and delicious dessert choice.