JAM
- to make unworkable
- to interfere with (radio signals), making them unintelligible
- to become stuck or unworkable
- people or objects jammed together
- to push into a space
- to force together tightly [v JAMMED, JAMMING, JAMS] : JAMMABLE [adj]
- difficult situation
- preserve of crushed fruit with sugar
- to adopt a self-important manner or use affected speech