Jam meaning

jăm
To cause (moving parts, for example) to lock into an unworkable position.

Jammed the typewriter keys.

verb
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To activate or apply (a brake) suddenly. Often used with on:

Jammed the brakes on.

verb
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To jam is defined as to shove in so something gets stuck, to squeeze into a tight space, or is a causal term for playing music.

An example of to jam is for keys on the keyboard to get stuck.

An example of to jam is to play the guitar with friends.

verb
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Jam is defined as being in an intense or difficult situation, or is a preserve made from whole fruit and sugar.

An example of a jam is a lot of traffic.

An example of jam is what goes with peanut butter on a sandwich.

noun
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To drive or wedge forcibly into a tight position.

Jammed the cork in the bottle.

verb
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(electronics) To interfere with or prevent the clear reception of (broadcast signals) by electronic means.
verb
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To become wedged or stuck.

The coin jammed in the slot.

verb
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verb
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(informal) To improvise freely, esp. in a jam session.
verb
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To block, congest, or clog.

A drain that was jammed by debris.

verb
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(baseball) To throw an inside pitch to (a batter), especially to prevent the batter from hitting the ball with the thicker part of the bat.
verb
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To become locked or stuck in an unworkable position.

The computer keyboard jammed.

verb
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To force one's way into or through a limited space.

We all jammed into the elevator.

verb
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(music) To participate in a jam session.
verb
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(basketball) To make a dunk shot.
verb
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The act of jamming or the condition of being jammed.
noun
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A crush or congestion of people or things in a limited space.

A traffic jam.

noun
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A trying situation.
noun
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A preserve made from whole fruit boiled to a pulp with sugar.
noun
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To squeeze or wedge into or through a confined space.
verb
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To push, shove, or crowd.
verb
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To pack full or tight.
verb
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To fill or block (a passageway, river, etc.) by crowding or squeezing in.
verb
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To make (radio broadcasts, radar signals, etc.) unintelligible, as by sending out other signals on the same wavelength.
verb
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To push against one another in a confined space.
verb
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A jamming or being jammed.
noun
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A group of persons or things so close together as to jam a passageway, etc.

A traffic jam.

noun
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(informal) A difficult situation; predicament.
noun
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noun
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noun
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A food made by boiling fruit with sugar to a thick mixture.
noun
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(place) Jamaica.
abbreviation
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(JYACC Application Manager) An application development system for client/server environments from Prolifics, New York (www.jyacc.com), a JYACC company. It supports Windows, Mac and Motif clients and most Unix servers and VMS. It supports over 20 databases and includes its own database (JDB) for prototyping. JAM/CASE allows CASE information to be moved into JAM. JAM/TPi integrates JAM with the Tuxedo and Encina TP monitors.
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A sweet mixture of fruit boiled with sugar and allowed to congeal. Often spread on bread or toast or used in jam tarts.
noun
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(countable) A difficult situation.

I’m in a jam right now. Can you help me out?

noun
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(countable) Blockage, congestion.

A traffic jam caused us to miss the game's first period.

A jam of logs in a river.

noun
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(countable, popular music) An informal, impromptu performance or rehearsal.
noun
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(countable, baseball) A difficult situation for a pitcher or defending team.

He's in a jam now, having walked the bases loaded with the cleanup hitter coming to bat.

noun
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(countable, basketball) A forceful dunk.
noun
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(countable, roller derby) A play during which points can be scored.

Toughie scored four points in that jam.

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(countable) Any of several rock-climbing maneuvers requiring wedging of an extremity into a tight space.

I used a whole series of fist and foot jams in that crack.

noun
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(UK) Luck.

He's got more jam than Waitrose.

noun
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(mining) Alternative form of jamb.
noun
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To get something stuck in a confined space.

My foot got jammed in a gap between the rocks.

verb
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To brusquely force something into a space; cram, squeeze.

They temporarily stopped the gas tank leak by jamming a piece of taffy into the hole.

The rush-hour train was jammed with commuters.

verb
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To cause congestion or blockage. Often used with "up"

A single accident can jam the roads for hours.

verb
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To block or confuse a broadcast signal.
verb
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(baseball) To throw a pitch at or near the batter's hands.

Jones was jammed by the pitch.

verb
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(music) To play music (especially improvisation as a group, or an informal unrehearsed session).
verb
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To injure a finger or toe by sudden compression of the digit's tip.

When he tripped on the step he jammed his toe.

verb
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(roller derby) To attempt to score points.

Toughie jammed four times in the second period.

verb
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(nautical) To bring (a vessel) so close to the wind that half her upper sails are laid aback.

verb
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(dated) A kind of frock for children.
noun
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(biblical) Abbreviation of James.
pronoun
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(law) Abbreviation of Jamaica.
pronoun
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To crush or bruise.

Jam a finger.

verb
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Origin of jam

  • Possibly from jam

    From American Heritage Dictionary of the English Language, 5th Edition

  • Origin unknown

    From American Heritage Dictionary of the English Language, 5th Edition

  • Persian or Hindi, meaning "garment, robe"; related to pajamas.

    From Wiktionary