Fruit for jelly is a term used to describe fruits that are commonly used to make jellies and jams. The three fruits that fit this description are QUINCE (6 letters), guava (5 letters) and CURRANT (7 letters). QUINCE is a tart, yellow fruit with a fragrant aroma that is often used to make jellies and jams. Guava is a tropical fruit with a sweet flavor that is also used to make jellies and jams. CURRANT is a small, tart berry that is often used to make jams and jellies.