1. n. (New Zealand, Australia, British) A dessert made by boiling gelatine, sugar and some flavouring (often derived from fruit) and allowing it to set, known as "jello" in North America.
2. n. (North America) A clear or translucent fruit preserve, made from fruit juice and set using either naturally occurring, or added, pectin. Known as "jam" in Commonwealth English.
3. n. A savoury substance, derived from meat, that has the same texture as the dessert.
4. n. Any substance or object having the consistency of jelly.
calf's-foot jelly
5. n. (zoology) A jellyfish.
6. n. (slang) A pretty girl; a girlfriend.
7. n. (US, slang) A large backside, especially a woman's.