noun

• (Commonwealth) A dessert made by boiling gelatine (or a plant-based alternative such as agar or carrageenan), sugar and some flavouring (often derived from fruit) and allowing it to set.
  "His mother prepared jelly for him and his friends for dessert."
• (chiefly Canada, US) A clear or translucent fruit preserve, made from fruit juice and set using either naturally occurring, or added, pectin.
  "Perfect jelly is of appetizing flavor; beautifully colored and translucent; tender enough to cut easily with a spoon, yet firm enough to hold its shape when turned from the glass."
• (Caribbean, Jamaica) Clipping of jelly coconut.
• (zoology) A jellyfish.
  "Species of the phylum Cnidaria – the classic jelly – have existed in something close to their current form for at least 565 million years; Ctenophora, the comb jellies, are not much younger."

verb

• (transitive) To make into jelly.
• (transitive) To preserve in jelly.

adj

• (slang) Jealous.
  "If the guy wants to party and bang porn stars, and he's not hurting anyone who really cares? I think a lot of guys are just jelly! :-)"

noun

• (India) Vitrified brick refuse used as metal in building roads.
  "Under pinning with jelly in chunam — one square."