A Quick and Simple Dictionary

jam

1. Noun.  A sweet mixture of fruit boiled with sugar and allowed to congeal. Often spread on bread or toast or used in jam tarts.
2. Noun.  (countable) A difficult situation.
3. Noun.  (countable) Blockage, congestion.
4. Noun.  (countable) (context, popular) An informal, impromptu performance or rehearsal.
5. Noun.  (countable) (baseball) A difficult situation for a pitcher or defending team.
6. Noun.  (countable) (basketball) A forceful dunk.
7. Noun.  (countable) (''roller derby'') A play during which points can be scored.
8. Noun.  (countable) Any of several rock-climbing maneuvers requiring wedging of an extremity into a tight space.
9. Noun.  (UK) luck.
10. Verb.  To get something stuck in a confined space.
11. Verb.  To brusquely force something into a space; cram, squeeze.
12. Verb.  To cause congestion or blockage. Often used with "up".
13. Verb.  To block or confuse a broadcast signal.
14. Verb.  (baseball) To throw a pitch at or near the batter's hands.
15. Verb.  (music) To play music (especially improvisation as a group.).
16. Verb.  To injure a finger or toe by sudden compression of the digit's tip.
17. Verb.  (''roller derby'') To attempt to score points.