jam

[ jam ]

/ dʒæm /

SEE MORE SYNONYMS FOR jam ON THESAURUS.COM

verb (used with object), jammed, jam·ming.

to press, squeeze, or wedge tightly between bodies or surfaces, so that motion or extrication is made difficult or impossible: The ship was jammed between two rocks.

to bruise or crush by squeezing: She jammed her hand in the door.

to fill too tightly; cram: He jammed the suitcase with clothing.

to press, push, or thrust violently, as into a confined space or against some object: She jammed her foot on the brake.

to fill or block up by crowding; pack or obstruct: Crowds jammed the doors.

to put or place in position with a violent gesture (often followed by on): He jammed his hat on and stalked out of the room.

to make (something) unworkable by causing parts to become stuck, blocked, caught, displaced, etc.: to jam a lock.

Radio.

to interfere with (radio signals or the like) by sending out other signals of approximately the same frequency.
(of radio signals or the like) to interfere with (other signals).

to play (a piece) in a freely improvised, swinging way; jazz up: to jam both standard tunes and the classics.

Nautical. to head (a sailing ship) as nearly as possible into the wind without putting it in stays or putting it wholly aback.

verb (used without object), jammed, jam·ming.

to become stuck, wedged, fixed, blocked, etc.: This door jams easily.

to press or push, often violently, as into a confined space or against one another: They jammed into the elevator.

(of a machine, part, etc.) to become unworkable, as through the wedging or displacement of a part.

Jazz. to participate in a jam session.

noun

the act of jamming or the state of being jammed.

a mass of objects, vehicles, etc., jammed together or otherwise unable to move except slowly: a log jam; a traffic jam.

Informal. a difficult or embarrassing situation; fix: He got himself into a jam with his boss.

jam session.

Nearby words

jalisco, jalopy, jalor, jalouse, jalousie, jam, jam nut, jam session, jam-pack, jam-packed, jam-up

Origin of jam

1700–10; apparently imitative; cf. champ¹, dam¹

Definition for jam (2 of 3)

jam

[ jam ]

/ dʒæm /

noun

a preserve of whole fruit, slightly crushed, boiled with sugar: strawberry jam.

Origin of jam

First recorded in 1720–30; perhaps special use of jam¹

Related forms

jam·like, jam·my, adjective

Definition for jam (3 of 3)

Jam.

Jamaica.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for jam

Most Cacophony events were one-off affairs, just enough to jam the culture a bit before moving on.
Before the Bros, SantaCon Was as an Anti-Corporate Protest|David Freedlander|December 12, 2014|DAILY BEAST
The rears of planes are becoming hell with smaller, harder seats to jam as many passengers in as possible.
Flying Coach Is the New Hell: How Airlines Engineer You Out of Room|Clive Irving|November 25, 2014|DAILY BEAST
Jam is there because of the sudden death of her boyfriend, Reeve, and the listless state of major depression it throws her into.
The Thrilling, Traumatic Lives of Teens: The Fall’s Best YA Fiction|Hugh Ryan|November 8, 2014|DAILY BEAST
Mumford Sons, “Hopeless Wanderer” That one time Jason Bateman, Ed Helms, Will Forte, and Jason Sudeikis had a jam session.
Andrew Garfield in ‘We Exist’ and More Celebrities in Music Videos|Marina Watts|May 18, 2014|DAILY BEAST

Personally, I'm waiting for the first scones, jam, and clotted cream fight.
The ‘Real Housewives’ Land in London|Tim Teeman|May 15, 2014|DAILY BEAST
Nooses were dropped over the upright ends of the logs at the foot of the jam, and the whole gang was set to pull on them.
Stories by American Authors, Volume 10|Various
When the jam is cooked to the proper consistency, the juice should test as for jelly.
Woman's Institute Library of Cookery, Vol. 5|Woman's Institute of Domestic Arts and Sciences
This prejudice is absolutely baseless, and enormous quantities of beet-sugar are used in the boiling of jam.
Encyclopaedia Britannica, 11th Edition, Volume 15, Slice 2|Various
Apricots are principally eaten as gathered; but are also dried, candied, and made into jam.
Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I|Arnold Cooley
In the case of trays of boiling fruit, jam, etc., it may lead to horrible accidents.
Women in Modern Industry|B. L. Hutchins

British Dictionary definitions for jam (1 of 3)

jam

/ (dʒæm) /

verb jams, jamming or jammed

(tr) to cram or wedge into or against somethingto jam paper into an incinerator

(tr) to crowd or packcars jammed the roads

to make or become stuck or lockedthe switch has jammed

(tr often foll by on) to activate suddenly (esp in the phrase jam on the brakes)

(tr) to block; congestto jam the drain with rubbish

(tr) to crush, bruise, or squeeze; smash

radio to prevent the clear reception of (radio communications or radar signals) by transmitting other signals on the same frequency

(intr) slang to play in a jam session

noun

a crowd or congestion in a confined spacea traffic jam

the act of jamming or the state of being jammed

informal a difficult situation; predicamentto help a friend out of a jam

See jam session

Derived Forms

jammer, noun

Word Origin for jam

C18: probably of imitative origin; compare champ 1

British Dictionary definitions for jam (2 of 3)

jam

/ (dʒæm) /

noun

a preserve containing fruit, which has been boiled with sugar until the mixture sets

slang something desirableyou want jam on it

jam today the principle of living for the moment

Word Origin for jam

C18: perhaps from jam 1 (the act of squeezing)

British Dictionary definitions for jam (3 of 3)

Jam.

abbreviation for

Jamaica

Bible James

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for jam

jam

[ jăm ]

v.

To block, congest, or clog.

To crush or bruise.

Idioms and Phrases with jam

jam

see under get in a bind.

jam

verb (used with object), jammed, jam·ming.

verb (used without object), jammed, jam·ming.

noun

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RELATED WORDS

Nearby words

Origin of jam

Definition for jam (2 of 3)

jam

noun

Origin of jam

Related forms

Definition for jam (3 of 3)

Jam.

Examples from the Web for jam

British Dictionary definitions for jam (1 of 3)

jam

verb jams, jamming or jammed

noun

Derived Forms

Word Origin for jam

British Dictionary definitions for jam (2 of 3)

jam

noun

Word Origin for jam

British Dictionary definitions for jam (3 of 3)

Jam.

abbreviation for

Medicine definitions for jam

jam

v.

Idioms and Phrases with jam

jam