The term 'Tropical Fruit Used for Jelly' can be summarized as 'Guava', which is a five-letter word. Guava is a tropical fruit that is widely used for making jellies and jams. It is native to Central America, Mexico, and parts of South America, but is now grown in many other tropical and subtropical regions around the world. Guava has a sweet, slightly acidic flavor and is often eaten raw or used in desserts, juices, and jams.