| subst. |
| 1. |
jam - preserve of crushed fruit |
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conserve,
conserves,
preserves,
preserve fruit preserved by cooking with sugar
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strawberry jam,
strawberry preserves made with strawberries
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| verb |
| 1. |
jam - interfere with or prevent the reception of signals; "Jam the Voice of America"; "block the signals emitted by this station" |
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block |
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disrupt,
interrupt,
cut off,
break up throw into disorder; "This event disrupted the orderly process"
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barrage jam jam an entire frequency spectrum; "During the Cold War, the Soviets routinely barrage jammed to interfere with transmissions from the West"
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point jam jam a narrow band of frequencies; "We can counter point-jamming effectively"
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spot jam jam a single frequency; "This operator is spot-jammed"
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blanket jam jam a broad spectrum of frequencies to affect all communications in the area except for directional antenna communications
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| 2. |
jam - crowd or pack to capacity; "the theater was jampacked" |
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jampack,
ram,
cram,
wad |
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cram prepare (students) hastily for an impending exam
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stuff fill tightly with a material; "stuff a pillow with feathers"
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| 3. |
jam - crush or bruise; "jam a toe" |
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crush |
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contuse,
bruise damage (plant tissue) by abrasion or pressure; "The customer bruised the strawberries by squeezing them"
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| 4. |
jam - get stuck and immobilized; "the mechanism jammed" |
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malfunction,
misfunction fail to function or function improperly; "the coffee maker malfunctioned"
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| 5. |
jam - push down forcibly; "The driver jammed the brake pedal to the floor" |
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force,
push impose urgently, importunately, or inexorably; "She forced her diet fads on him"
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