Jam | Mean of jam in English Dictionary

/ˈʤæm/

• Verb
• to fill (a place) completely
1. Thousands of people jammed the hall. = The hall was jammed [=jam-packed, packed] with thousands of people.
2. Thousands of people jammed into the hall.
• to fill (something, such as a door or a road) so that movement is slow or stopped
1. People were jamming the exits after the concert.
2. All the roads and bridges were jammed (with traffic).
3. All the telephone lines were jammed with calls from angry customers.
• to press or push (an object) into a tight place
1. He jammed the book back into the bookcase.
2. A piece of paper got/was jammed [=stuck] in the copy machine.

• to push (a part of your body, a lever, etc.) suddenly and forcefully
1. She jammed her foot down hard on the brakes.
2. She jammed on the brakes.
• to cause (a part of your body) to be painfully crushed, squeezed, etc.
1. I jammed my finger in the car door. = My finger got jammed in the car door. = I got my finger jammed in the car door.
2. I jammed [=stubbed] my toe on the chair's leg.
• to stop working properly because something inside prevents movement
1. The copy machine jammed (up) again.
2. The lock/gun jammed.
• to cause (something) to stop working properly by preventing its parts from moving
1. A piece of paper jammed the copy machine.
• to make (a radio signal or broadcast) impossible to understand by sending out signals or messages that weaken or block it
1. jam a radio broadcast
• to play music informally together without preparation
1. We like to get together and jam (with each other).
• to throw a pitch that is close to a batter and that the batter is unable to hit well
1. The pitcher jammed him with an inside fastball.
• Noun
• a situation in which a machine does not work properly because something inside prevents its parts from moving
1. There's a paper jam in the printer.
• a situation in which something (such as a road) is so filled that movement is stopped or slowed
1. I got stuck in a traffic jam on the way home from work.
• a difficult situation
1. He got in/into a real jam with his girlfriend.
2. She asked her parents for money to help her get out of a jam.
• a sweet food made of fruit and sugar thickened by boiling
1. a jar of raspberry jam